Home / 898,156,902.30-1,347,235,353.45-438,390,015.90

Finding the Fourth Proportional to 898,156,902.30, 1,347,235,353.45 and 438,390,015.90

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Solution

The fourth proportional to 898,156,902.30, 1,347,235,353.45 and 438,390,015.90 is: 657,585,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,156,902.30 : 1,347,235,353.45 = 438,390,015.90 : x
  2. Step 2: Convert to fraction form
    898,156,902.30/1,347,235,353.45 = 438,390,015.90/x
  3. Step 3: Cross multiply
    898,156,902.30x = 1,347,235,353.45 × 438,390,015.90
  4. Step 4: Simplify right side
    898,156,902.30x = 590,614,528,019,987,584
  5. Step 5: Solve for x
    x = 590,614,528,019,987,584/898,156,902.30
  6. Step 6: Final answer
    x = 657,585,023.85

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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.