Home / 253,258,871.52-379,915,851.60-80,695,123.68

Finding the Fourth Proportional to 253,258,871.52, 379,915,851.60 and 80,695,123.68

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Solution

The fourth proportional to 253,258,871.52, 379,915,851.60 and 80,695,123.68 is: 121,051,461.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,258,871.52 : 379,915,851.60 = 80,695,123.68 : x
  2. Step 2: Convert to fraction form
    253,258,871.52/379,915,851.60 = 80,695,123.68/x
  3. Step 3: Cross multiply
    253,258,871.52x = 379,915,851.60 × 80,695,123.68
  4. Step 4: Simplify right side
    253,258,871.52x = 30,657,356,632,854,532
  5. Step 5: Solve for x
    x = 30,657,356,632,854,532/253,258,871.52
  6. Step 6: Final answer
    x = 121,051,461.89

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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.