Home / 679,914,779.20-1,019,872,168.80-531,961,604.80

Finding the Fourth Proportional to 679,914,779.20, 1,019,872,168.80 and 531,961,604.80

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Solution

The fourth proportional to 679,914,779.20, 1,019,872,168.80 and 531,961,604.80 is: 797,942,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,914,779.20 : 1,019,872,168.80 = 531,961,604.80 : x
  2. Step 2: Convert to fraction form
    679,914,779.20/1,019,872,168.80 = 531,961,604.80/x
  3. Step 3: Cross multiply
    679,914,779.20x = 1,019,872,168.80 × 531,961,604.80
  4. Step 4: Simplify right side
    679,914,779.20x = 542,532,835,605,704,448
  5. Step 5: Solve for x
    x = 542,532,835,605,704,448/679,914,779.20
  6. Step 6: Final answer
    x = 797,942,407.20

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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.