Home / 1,122,461,347.80-1,683,692,021.70-709,212,826.20

Finding the Fourth Proportional to 1,122,461,347.80, 1,683,692,021.70 and 709,212,826.20

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Solution

The fourth proportional to 1,122,461,347.80, 1,683,692,021.70 and 709,212,826.20 is: 1,063,819,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,461,347.80 : 1,683,692,021.70 = 709,212,826.20 : x
  2. Step 2: Convert to fraction form
    1,122,461,347.80/1,683,692,021.70 = 709,212,826.20/x
  3. Step 3: Cross multiply
    1,122,461,347.80x = 1,683,692,021.70 × 709,212,826.20
  4. Step 4: Simplify right side
    1,122,461,347.80x = 1,194,095,977,160,248,832
  5. Step 5: Solve for x
    x = 1,194,095,977,160,248,832/1,122,461,347.80
  6. Step 6: Final answer
    x = 1,063,819,239.30

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Double scale
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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.