Home / 782,409,631.20-1,173,614,446.80-752,176,543.20

Finding the Fourth Proportional to 782,409,631.20, 1,173,614,446.80 and 752,176,543.20

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Solution

The fourth proportional to 782,409,631.20, 1,173,614,446.80 and 752,176,543.20 is: 1,128,264,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,409,631.20 : 1,173,614,446.80 = 752,176,543.20 : x
  2. Step 2: Convert to fraction form
    782,409,631.20/1,173,614,446.80 = 752,176,543.20/x
  3. Step 3: Cross multiply
    782,409,631.20x = 1,173,614,446.80 × 752,176,543.20
  4. Step 4: Simplify right side
    782,409,631.20x = 882,765,257,643,604,352
  5. Step 5: Solve for x
    x = 882,765,257,643,604,352/782,409,631.20
  6. Step 6: Final answer
    x = 1,128,264,814.80

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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.