Home / 66,121,720.80-91,248,033.09-36,352,875.39

Finding the Fourth Proportional to 66,121,720.80, 91,248,033.09 and 36,352,875.39

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Solution

The fourth proportional to 66,121,720.80, 91,248,033.09 and 36,352,875.39 is: 50,167,000.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,121,720.80 : 91,248,033.09 = 36,352,875.39 : x
  2. Step 2: Convert to fraction form
    66,121,720.80/91,248,033.09 = 36,352,875.39/x
  3. Step 3: Cross multiply
    66,121,720.80x = 91,248,033.09 × 36,352,875.39
  4. Step 4: Simplify right side
    66,121,720.80x = 3,317,128,376,503,367
  5. Step 5: Solve for x
    x = 3,317,128,376,503,367/66,121,720.80
  6. Step 6: Final answer
    x = 50,167,000.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.