Home / 129,350,913.49-178,504,985.63-73,596,332.73

Finding the Fourth Proportional to 129,350,913.49, 178,504,985.63 and 73,596,332.73

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Solution

The fourth proportional to 129,350,913.49, 178,504,985.63 and 73,596,332.73 is: 101,563,351.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,350,913.49 : 178,504,985.63 = 73,596,332.73 : x
  2. Step 2: Convert to fraction form
    129,350,913.49/178,504,985.63 = 73,596,332.73/x
  3. Step 3: Cross multiply
    129,350,913.49x = 178,504,985.63 × 73,596,332.73
  4. Step 4: Simplify right side
    129,350,913.49x = 13,137,312,316,389,350
  5. Step 5: Solve for x
    x = 13,137,312,316,389,350/129,350,913.49
  6. Step 6: Final answer
    x = 101,563,351.68

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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.