Home / 21,386,487.70-32,079,731.55-9,871,932.70

Finding the Fourth Proportional to 21,386,487.70, 32,079,731.55 and 9,871,932.70

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Solution

The fourth proportional to 21,386,487.70, 32,079,731.55 and 9,871,932.70 is: 14,807,899.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386,487.70 : 32,079,731.55 = 9,871,932.70 : x
  2. Step 2: Convert to fraction form
    21,386,487.70/32,079,731.55 = 9,871,932.70/x
  3. Step 3: Cross multiply
    21,386,487.70x = 32,079,731.55 × 9,871,932.70
  4. Step 4: Simplify right side
    21,386,487.70x = 316,688,950,895,666.69
  5. Step 5: Solve for x
    x = 316,688,950,895,666.69/21,386,487.70
  6. Step 6: Final answer
    x = 14,807,899.05

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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.