Home / 319,538,769.90-478,977,480.45-173,664,120.30

Finding the Fourth Proportional to 319,538,769.90, 478,977,480.45 and 173,664,120.30

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Solution

The fourth proportional to 319,538,769.90, 478,977,480.45 and 173,664,120.30 is: 260,316,464.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,538,769.90 : 478,977,480.45 = 173,664,120.30 : x
  2. Step 2: Convert to fraction form
    319,538,769.90/478,977,480.45 = 173,664,120.30/x
  3. Step 3: Cross multiply
    319,538,769.90x = 478,977,480.45 × 173,664,120.30
  4. Step 4: Simplify right side
    319,538,769.90x = 83,181,202,785,859,696
  5. Step 5: Solve for x
    x = 83,181,202,785,859,696/319,538,769.90
  6. Step 6: Final answer
    x = 260,316,464.30

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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.