Home / 854,620,890.40-1,281,931,335.60-797,289,997.60

Finding the Fourth Proportional to 854,620,890.40, 1,281,931,335.60 and 797,289,997.60

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Solution

The fourth proportional to 854,620,890.40, 1,281,931,335.60 and 797,289,997.60 is: 1,195,934,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,620,890.40 : 1,281,931,335.60 = 797,289,997.60 : x
  2. Step 2: Convert to fraction form
    854,620,890.40/1,281,931,335.60 = 797,289,997.60/x
  3. Step 3: Cross multiply
    854,620,890.40x = 1,281,931,335.60 × 797,289,997.60
  4. Step 4: Simplify right side
    854,620,890.40x = 1,022,071,031,483,888,768
  5. Step 5: Solve for x
    x = 1,022,071,031,483,888,768/854,620,890.40
  6. Step 6: Final answer
    x = 1,195,934,996.40

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Half scale
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Double scale
Find fourth proportional to 854,620,891.40, 1,281,931,337.10 and 797,289,998.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.