Home / 21,720,011.20-32,559,280.80-8,069,502.40

Finding the Fourth Proportional to 21,720,011.20, 32,559,280.80 and 8,069,502.40

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Solution

The fourth proportional to 21,720,011.20, 32,559,280.80 and 8,069,502.40 is: 12,096,549.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720,011.20 : 32,559,280.80 = 8,069,502.40 : x
  2. Step 2: Convert to fraction form
    21,720,011.20/32,559,280.80 = 8,069,502.40/x
  3. Step 3: Cross multiply
    21,720,011.20x = 32,559,280.80 × 8,069,502.40
  4. Step 4: Simplify right side
    21,720,011.20x = 262,737,194,557,873.94
  5. Step 5: Solve for x
    x = 262,737,194,557,873.94/21,720,011.20
  6. Step 6: Final answer
    x = 12,096,549.68

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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.