Home / 89,836,117.40-134,754,176.10-78,498,709.40

Finding the Fourth Proportional to 89,836,117.40, 134,754,176.10 and 78,498,709.40

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Solution

The fourth proportional to 89,836,117.40, 134,754,176.10 and 78,498,709.40 is: 117,748,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,836,117.40 : 134,754,176.10 = 78,498,709.40 : x
  2. Step 2: Convert to fraction form
    89,836,117.40/134,754,176.10 = 78,498,709.40/x
  3. Step 3: Cross multiply
    89,836,117.40x = 134,754,176.10 × 78,498,709.40
  4. Step 4: Simplify right side
    89,836,117.40x = 10,578,028,910,110,326
  5. Step 5: Solve for x
    x = 10,578,028,910,110,326/89,836,117.40
  6. Step 6: Final answer
    x = 117,748,064.10

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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.