Home / 1,539,648,985.20-2,309,473,477.80-620,185,196.40

Finding the Fourth Proportional to 1,539,648,985.20, 2,309,473,477.80 and 620,185,196.40

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Solution

The fourth proportional to 1,539,648,985.20, 2,309,473,477.80 and 620,185,196.40 is: 930,277,794.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,648,985.20 : 2,309,473,477.80 = 620,185,196.40 : x
  2. Step 2: Convert to fraction form
    1,539,648,985.20/2,309,473,477.80 = 620,185,196.40/x
  3. Step 3: Cross multiply
    1,539,648,985.20x = 2,309,473,477.80 × 620,185,196.40
  4. Step 4: Simplify right side
    1,539,648,985.20x = 1,432,301,262,409,984,000
  5. Step 5: Solve for x
    x = 1,432,301,262,409,984,000/1,539,648,985.20
  6. Step 6: Final answer
    x = 930,277,794.60

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Double scale
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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.