Home / 220,867,681.92-331,302,378.24-67,513,142.40

Finding the Fourth Proportional to 220,867,681.92, 331,302,378.24 and 67,513,142.40

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Solution

The fourth proportional to 220,867,681.92, 331,302,378.24 and 67,513,142.40 is: 101,269,975.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,867,681.92 : 331,302,378.24 = 67,513,142.40 : x
  2. Step 2: Convert to fraction form
    220,867,681.92/331,302,378.24 = 67,513,142.40/x
  3. Step 3: Cross multiply
    220,867,681.92x = 331,302,378.24 × 67,513,142.40
  4. Step 4: Simplify right side
    220,867,681.92x = 22,367,264,639,575,784
  5. Step 5: Solve for x
    x = 22,367,264,639,575,784/220,867,681.92
  6. Step 6: Final answer
    x = 101,269,975.06

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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.