Home / 391,103,670.90-586,655,506.35-148,735,082.10

Finding the Fourth Proportional to 391,103,670.90, 586,655,506.35 and 148,735,082.10

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Solution

The fourth proportional to 391,103,670.90, 586,655,506.35 and 148,735,082.10 is: 223,102,623.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,103,670.90 : 586,655,506.35 = 148,735,082.10 : x
  2. Step 2: Convert to fraction form
    391,103,670.90/586,655,506.35 = 148,735,082.10/x
  3. Step 3: Cross multiply
    391,103,670.90x = 586,655,506.35 × 148,735,082.10
  4. Step 4: Simplify right side
    391,103,670.90x = 87,256,254,901,384,320
  5. Step 5: Solve for x
    x = 87,256,254,901,384,320/391,103,670.90
  6. Step 6: Final answer
    x = 223,102,623.15

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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.