Home / 660,830,902.25-991,359,282.77-272,441,419.16

Finding the Fourth Proportional to 660,830,902.25, 991,359,282.77 and 272,441,419.16

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Solution

The fourth proportional to 660,830,902.25, 991,359,282.77 and 272,441,419.16 is: 408,708,686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,830,902.25 : 991,359,282.77 = 272,441,419.16 : x
  2. Step 2: Convert to fraction form
    660,830,902.25/991,359,282.77 = 272,441,419.16/x
  3. Step 3: Cross multiply
    660,830,902.25x = 991,359,282.77 × 272,441,419.16
  4. Step 4: Simplify right side
    660,830,902.25x = 270,087,329,895,298,560
  5. Step 5: Solve for x
    x = 270,087,329,895,298,560/660,830,902.25
  6. Step 6: Final answer
    x = 408,708,686.25

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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.