Home / 319,283,998.20-478,925,997.30-316,260,689.40

Finding the Fourth Proportional to 319,283,998.20, 478,925,997.30 and 316,260,689.40

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Solution

The fourth proportional to 319,283,998.20, 478,925,997.30 and 316,260,689.40 is: 474,391,034.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,283,998.20 : 478,925,997.30 = 316,260,689.40 : x
  2. Step 2: Convert to fraction form
    319,283,998.20/478,925,997.30 = 316,260,689.40/x
  3. Step 3: Cross multiply
    319,283,998.20x = 478,925,997.30 × 316,260,689.40
  4. Step 4: Simplify right side
    319,283,998.20x = 151,465,466,077,680,544
  5. Step 5: Solve for x
    x = 151,465,466,077,680,544/319,283,998.20
  6. Step 6: Final answer
    x = 474,391,034.10

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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.