Home / 12,078,812.97-18,095,358.85-7,140,058.81

Finding the Fourth Proportional to 12,078,812.97, 18,095,358.85 and 7,140,058.81

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Solution

The fourth proportional to 12,078,812.97, 18,095,358.85 and 7,140,058.81 is: 10,696,574.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078,812.97 : 18,095,358.85 = 7,140,058.81 : x
  2. Step 2: Convert to fraction form
    12,078,812.97/18,095,358.85 = 7,140,058.81/x
  3. Step 3: Cross multiply
    12,078,812.97x = 18,095,358.85 × 7,140,058.81
  4. Step 4: Simplify right side
    12,078,812.97x = 129,201,926,334,050.42
  5. Step 5: Solve for x
    x = 129,201,926,334,050.42/12,078,812.97
  6. Step 6: Final answer
    x = 10,696,574.79

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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.