Home / 319,125,426.60-478,713,023.10-137,378,533.80

Finding the Fourth Proportional to 319,125,426.60, 478,713,023.10 and 137,378,533.80

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Solution

The fourth proportional to 319,125,426.60, 478,713,023.10 and 137,378,533.80 is: 206,078,512.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,125,426.60 : 478,713,023.10 = 137,378,533.80 : x
  2. Step 2: Convert to fraction form
    319,125,426.60/478,713,023.10 = 137,378,533.80/x
  3. Step 3: Cross multiply
    319,125,426.60x = 478,713,023.10 × 137,378,533.80
  4. Step 4: Simplify right side
    319,125,426.60x = 65,764,893,224,443,536
  5. Step 5: Solve for x
    x = 65,764,893,224,443,536/319,125,426.60
  6. Step 6: Final answer
    x = 206,078,512.53

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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.