Home / 487,997,281.80-731,995,922.70-164,876,488.20

Finding the Fourth Proportional to 487,997,281.80, 731,995,922.70 and 164,876,488.20

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Solution

The fourth proportional to 487,997,281.80, 731,995,922.70 and 164,876,488.20 is: 247,314,732.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,997,281.80 : 731,995,922.70 = 164,876,488.20 : x
  2. Step 2: Convert to fraction form
    487,997,281.80/731,995,922.70 = 164,876,488.20/x
  3. Step 3: Cross multiply
    487,997,281.80x = 731,995,922.70 × 164,876,488.20
  4. Step 4: Simplify right side
    487,997,281.80x = 120,688,917,111,494,656
  5. Step 5: Solve for x
    x = 120,688,917,111,494,656/487,997,281.80
  6. Step 6: Final answer
    x = 247,314,732.30

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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.