Home / 908,349,728.10-1,363,162,321.35-391,151,346.90

Finding the Fourth Proportional to 908,349,728.10, 1,363,162,321.35 and 391,151,346.90

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Solution

The fourth proportional to 908,349,728.10, 1,363,162,321.35 and 391,151,346.90 is: 587,001,637.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,349,728.10 : 1,363,162,321.35 = 391,151,346.90 : x
  2. Step 2: Convert to fraction form
    908,349,728.10/1,363,162,321.35 = 391,151,346.90/x
  3. Step 3: Cross multiply
    908,349,728.10x = 1,363,162,321.35 × 391,151,346.90
  4. Step 4: Simplify right side
    908,349,728.10x = 533,202,778,039,383,040
  5. Step 5: Solve for x
    x = 533,202,778,039,383,040/908,349,728.10
  6. Step 6: Final answer
    x = 587,001,637.74

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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.