Home / 145,013,552.70-217,520,329.05-83,707,568.70

Finding the Fourth Proportional to 145,013,552.70, 217,520,329.05 and 83,707,568.70

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Solution

The fourth proportional to 145,013,552.70, 217,520,329.05 and 83,707,568.70 is: 125,561,353.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,013,552.70 : 217,520,329.05 = 83,707,568.70 : x
  2. Step 2: Convert to fraction form
    145,013,552.70/217,520,329.05 = 83,707,568.70/x
  3. Step 3: Cross multiply
    145,013,552.70x = 217,520,329.05 × 83,707,568.70
  4. Step 4: Simplify right side
    145,013,552.70x = 18,208,097,887,599,484
  5. Step 5: Solve for x
    x = 18,208,097,887,599,484/145,013,552.70
  6. Step 6: Final answer
    x = 125,561,353.05

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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.