Home / 72,597,615.30-108,896,422.95-69,070,421.70

Finding the Fourth Proportional to 72,597,615.30, 108,896,422.95 and 69,070,421.70

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Solution

The fourth proportional to 72,597,615.30, 108,896,422.95 and 69,070,421.70 is: 103,605,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,597,615.30 : 108,896,422.95 = 69,070,421.70 : x
  2. Step 2: Convert to fraction form
    72,597,615.30/108,896,422.95 = 69,070,421.70/x
  3. Step 3: Cross multiply
    72,597,615.30x = 108,896,422.95 × 69,070,421.70
  4. Step 4: Simplify right side
    72,597,615.30x = 7,521,521,854,778,059
  5. Step 5: Solve for x
    x = 7,521,521,854,778,059/72,597,615.30
  6. Step 6: Final answer
    x = 103,605,632.55

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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.