Home / 772,690,900.80-1,159,092,338.40-465,321,172.80

Finding the Fourth Proportional to 772,690,900.80, 1,159,092,338.40 and 465,321,172.80

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Solution

The fourth proportional to 772,690,900.80, 1,159,092,338.40 and 465,321,172.80 is: 698,015,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,690,900.80 : 1,159,092,338.40 = 465,321,172.80 : x
  2. Step 2: Convert to fraction form
    772,690,900.80/1,159,092,338.40 = 465,321,172.80/x
  3. Step 3: Cross multiply
    772,690,900.80x = 1,159,092,338.40 × 465,321,172.80
  4. Step 4: Simplify right side
    772,690,900.80x = 539,350,206,287,782,528
  5. Step 5: Solve for x
    x = 539,350,206,287,782,528/772,690,900.80
  6. Step 6: Final answer
    x = 698,015,475.18

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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.