Home / 660,830,901.25-991,359,281.27-272,441,418.16

Finding the Fourth Proportional to 660,830,901.25, 991,359,281.27 and 272,441,418.16

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Solution

The fourth proportional to 660,830,901.25, 991,359,281.27 and 272,441,418.16 is: 408,708,684.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,830,901.25 : 991,359,281.27 = 272,441,418.16 : x
  2. Step 2: Convert to fraction form
    660,830,901.25/991,359,281.27 = 272,441,418.16/x
  3. Step 3: Cross multiply
    660,830,901.25x = 991,359,281.27 × 272,441,418.16
  4. Step 4: Simplify right side
    660,830,901.25x = 270,087,328,495,048,544
  5. Step 5: Solve for x
    x = 270,087,328,495,048,544/660,830,901.25
  6. Step 6: Final answer
    x = 408,708,684.75

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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.