Home / 135,986,848.20-187,608,580-83,685,082.12

Finding the Fourth Proportional to 135,986,848.20, 187,608,580 and 83,685,082.12

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Solution

The fourth proportional to 135,986,848.20, 187,608,580 and 83,685,082.12 is: 115,452,631.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,986,848.20 : 187,608,580 = 83,685,082.12 : x
  2. Step 2: Convert to fraction form
    135,986,848.20/187,608,580 = 83,685,082.12/x
  3. Step 3: Cross multiply
    135,986,848.20x = 187,608,580 × 83,685,082.12
  4. Step 4: Simplify right side
    135,986,848.20x = 15,700,039,423,716,590
  5. Step 5: Solve for x
    x = 15,700,039,423,716,590/135,986,848.20
  6. Step 6: Final answer
    x = 115,452,631.13

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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.