Home / 13,817,565.80-20,720,127.90-6,240,631.40

Finding the Fourth Proportional to 13,817,565.80, 20,720,127.90 and 6,240,631.40

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Solution

The fourth proportional to 13,817,565.80, 20,720,127.90 and 6,240,631.40 is: 9,358,137.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817,565.80 : 20,720,127.90 = 6,240,631.40 : x
  2. Step 2: Convert to fraction form
    13,817,565.80/20,720,127.90 = 6,240,631.40/x
  3. Step 3: Cross multiply
    13,817,565.80x = 20,720,127.90 × 6,240,631.40
  4. Step 4: Simplify right side
    13,817,565.80x = 129,306,680,784,756.06
  5. Step 5: Solve for x
    x = 129,306,680,784,756.06/13,817,565.80
  6. Step 6: Final answer
    x = 9,358,137.51

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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.