Home / 9,121,397.15-12,587,529.05-4,991,429.17

Finding the Fourth Proportional to 9,121,397.15, 12,587,529.05 and 4,991,429.17

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Solution

The fourth proportional to 9,121,397.15, 12,587,529.05 and 4,991,429.17 is: 6,888,172.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121,397.15 : 12,587,529.05 = 4,991,429.17 : x
  2. Step 2: Convert to fraction form
    9,121,397.15/12,587,529.05 = 4,991,429.17/x
  3. Step 3: Cross multiply
    9,121,397.15x = 12,587,529.05 × 4,991,429.17
  4. Step 4: Simplify right side
    9,121,397.15x = 62,829,759,678,392.39
  5. Step 5: Solve for x
    x = 62,829,759,678,392.39/9,121,397.15
  6. Step 6: Final answer
    x = 6,888,172.79

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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.