Home / 13,290,260.01-18,340,565.85-7,178,688.51

Finding the Fourth Proportional to 13,290,260.01, 18,340,565.85 and 7,178,688.51

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Solution

The fourth proportional to 13,290,260.01, 18,340,565.85 and 7,178,688.51 is: 9,906,593.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,260.01 : 18,340,565.85 = 7,178,688.51 : x
  2. Step 2: Convert to fraction form
    13,290,260.01/18,340,565.85 = 7,178,688.51/x
  3. Step 3: Cross multiply
    13,290,260.01x = 18,340,565.85 × 7,178,688.51
  4. Step 4: Simplify right side
    13,290,260.01x = 131,661,209,334,293.39
  5. Step 5: Solve for x
    x = 131,661,209,334,293.39/13,290,260.01
  6. Step 6: Final answer
    x = 9,906,593.94

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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.