Home / 319,308,049.10-478,962,073.65-137,909,521.10

Finding the Fourth Proportional to 319,308,049.10, 478,962,073.65 and 137,909,521.10

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Solution

The fourth proportional to 319,308,049.10, 478,962,073.65 and 137,909,521.10 is: 206,864,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,308,049.10 : 478,962,073.65 = 137,909,521.10 : x
  2. Step 2: Convert to fraction form
    319,308,049.10/478,962,073.65 = 137,909,521.10/x
  3. Step 3: Cross multiply
    319,308,049.10x = 478,962,073.65 × 137,909,521.10
  4. Step 4: Simplify right side
    319,308,049.10x = 66,053,430,202,134,424
  5. Step 5: Solve for x
    x = 66,053,430,202,134,424/319,308,049.10
  6. Step 6: Final answer
    x = 206,864,281.65

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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.