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Finding the Fourth Proportional to 898,649,781.60, 1,347,974,672.40 and 753,530,959.20

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Solution

The fourth proportional to 898,649,781.60, 1,347,974,672.40 and 753,530,959.20 is: 1,130,296,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,649,781.60 : 1,347,974,672.40 = 753,530,959.20 : x
  2. Step 2: Convert to fraction form
    898,649,781.60/1,347,974,672.40 = 753,530,959.20/x
  3. Step 3: Cross multiply
    898,649,781.60x = 1,347,974,672.40 × 753,530,959.20
  4. Step 4: Simplify right side
    898,649,781.60x = 1,015,740,647,870,877,952
  5. Step 5: Solve for x
    x = 1,015,740,647,870,877,952/898,649,781.60
  6. Step 6: Final answer
    x = 1,130,296,438.80

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1.5x scale

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.