Home / 13,290,260.04-18,340,565.88-7,178,688.52

Finding the Fourth Proportional to 13,290,260.04, 18,340,565.88 and 7,178,688.52

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Solution

The fourth proportional to 13,290,260.04, 18,340,565.88 and 7,178,688.52 is: 9,906,593.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,260.04 : 18,340,565.88 = 7,178,688.52 : x
  2. Step 2: Convert to fraction form
    13,290,260.04/18,340,565.88 = 7,178,688.52/x
  3. Step 3: Cross multiply
    13,290,260.04x = 18,340,565.88 × 7,178,688.52
  4. Step 4: Simplify right side
    13,290,260.04x = 131,661,209,733,059.69
  5. Step 5: Solve for x
    x = 131,661,209,733,059.69/13,290,260.04
  6. Step 6: Final answer
    x = 9,906,593.95

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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.