Home / 487,997,286.30-731,995,929.45-164,876,492.70

Finding the Fourth Proportional to 487,997,286.30, 731,995,929.45 and 164,876,492.70

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Solution

The fourth proportional to 487,997,286.30, 731,995,929.45 and 164,876,492.70 is: 247,314,739.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,997,286.30 : 731,995,929.45 = 164,876,492.70 : x
  2. Step 2: Convert to fraction form
    487,997,286.30/731,995,929.45 = 164,876,492.70/x
  3. Step 3: Cross multiply
    487,997,286.30x = 731,995,929.45 × 164,876,492.70
  4. Step 4: Simplify right side
    487,997,286.30x = 120,688,921,518,392,640
  5. Step 5: Solve for x
    x = 120,688,921,518,392,640/487,997,286.30
  6. Step 6: Final answer
    x = 247,314,739.05

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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.