Home / 908,349,719.10-1,363,162,307.85-391,151,337.90

Finding the Fourth Proportional to 908,349,719.10, 1,363,162,307.85 and 391,151,337.90

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Solution

The fourth proportional to 908,349,719.10, 1,363,162,307.85 and 391,151,337.90 is: 587,001,624.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,349,719.10 : 1,363,162,307.85 = 391,151,337.90 : x
  2. Step 2: Convert to fraction form
    908,349,719.10/1,363,162,307.85 = 391,151,337.90/x
  3. Step 3: Cross multiply
    908,349,719.10x = 1,363,162,307.85 × 391,151,337.90
  4. Step 4: Simplify right side
    908,349,719.10x = 533,202,760,490,379,072
  5. Step 5: Solve for x
    x = 533,202,760,490,379,072/908,349,719.10
  6. Step 6: Final answer
    x = 587,001,624.24

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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.