Home / 66,434,433.60-99,651,650.40-61,173,167.70

Finding the Fourth Proportional to 66,434,433.60, 99,651,650.40 and 61,173,167.70

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Solution

The fourth proportional to 66,434,433.60, 99,651,650.40 and 61,173,167.70 is: 91,759,751.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,434,433.60 : 99,651,650.40 = 61,173,167.70 : x
  2. Step 2: Convert to fraction form
    66,434,433.60/99,651,650.40 = 61,173,167.70/x
  3. Step 3: Cross multiply
    66,434,433.60x = 99,651,650.40 × 61,173,167.70
  4. Step 4: Simplify right side
    66,434,433.60x = 6,096,007,121,500,973
  5. Step 5: Solve for x
    x = 6,096,007,121,500,973/66,434,433.60
  6. Step 6: Final answer
    x = 91,759,751.55

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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.