Home / 118,889,712.15-178,334,568.23-86,473,123.35

Finding the Fourth Proportional to 118,889,712.15, 178,334,568.23 and 86,473,123.35

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Solution

The fourth proportional to 118,889,712.15, 178,334,568.23 and 86,473,123.35 is: 129,709,685.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,889,712.15 : 178,334,568.23 = 86,473,123.35 : x
  2. Step 2: Convert to fraction form
    118,889,712.15/178,334,568.23 = 86,473,123.35/x
  3. Step 3: Cross multiply
    118,889,712.15x = 178,334,568.23 × 86,473,123.35
  4. Step 4: Simplify right side
    118,889,712.15x = 15,421,147,116,121,780
  5. Step 5: Solve for x
    x = 15,421,147,116,121,780/118,889,712.15
  6. Step 6: Final answer
    x = 129,709,685.03

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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.