Home / 15,764,931.81-21,755,596.28-8,521,587.81

Finding the Fourth Proportional to 15,764,931.81, 21,755,596.28 and 8,521,587.81

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Solution

The fourth proportional to 15,764,931.81, 21,755,596.28 and 8,521,587.81 is: 11,759,785.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,764,931.81 : 21,755,596.28 = 8,521,587.81 : x
  2. Step 2: Convert to fraction form
    15,764,931.81/21,755,596.28 = 8,521,587.81/x
  3. Step 3: Cross multiply
    15,764,931.81x = 21,755,596.28 × 8,521,587.81
  4. Step 4: Simplify right side
    15,764,931.81x = 185,392,224,016,321.41
  5. Step 5: Solve for x
    x = 185,392,224,016,321.41/15,764,931.81
  6. Step 6: Final answer
    x = 11,759,785.98

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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.