Home / 70,985,861.52-97,960,553.76-38,390,813.52

Finding the Fourth Proportional to 70,985,861.52, 97,960,553.76 and 38,390,813.52

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Solution

The fourth proportional to 70,985,861.52, 97,960,553.76 and 38,390,813.52 is: 52,979,357.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,985,861.52 : 97,960,553.76 = 38,390,813.52 : x
  2. Step 2: Convert to fraction form
    70,985,861.52/97,960,553.76 = 38,390,813.52/x
  3. Step 3: Cross multiply
    70,985,861.52x = 97,960,553.76 × 38,390,813.52
  4. Step 4: Simplify right side
    70,985,861.52x = 3,760,785,351,716,095.50
  5. Step 5: Solve for x
    x = 3,760,785,351,716,095.50/70,985,861.52
  6. Step 6: Final answer
    x = 52,979,357.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.