Home / 118,889,729.15-178,334,593.73-86,473,140.35

Finding the Fourth Proportional to 118,889,729.15, 178,334,593.73 and 86,473,140.35

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Solution

The fourth proportional to 118,889,729.15, 178,334,593.73 and 86,473,140.35 is: 129,709,710.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,889,729.15 : 178,334,593.73 = 86,473,140.35 : x
  2. Step 2: Convert to fraction form
    118,889,729.15/178,334,593.73 = 86,473,140.35/x
  3. Step 3: Cross multiply
    118,889,729.15x = 178,334,593.73 × 86,473,140.35
  4. Step 4: Simplify right side
    118,889,729.15x = 15,421,152,352,874,518
  5. Step 5: Solve for x
    x = 15,421,152,352,874,518/118,889,729.15
  6. Step 6: Final answer
    x = 129,709,710.53

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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.