Home / 114,956,948.40-172,435,422.60-74,142,279.60

Finding the Fourth Proportional to 114,956,948.40, 172,435,422.60 and 74,142,279.60

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Solution

The fourth proportional to 114,956,948.40, 172,435,422.60 and 74,142,279.60 is: 111,213,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,956,948.40 : 172,435,422.60 = 74,142,279.60 : x
  2. Step 2: Convert to fraction form
    114,956,948.40/172,435,422.60 = 74,142,279.60/x
  3. Step 3: Cross multiply
    114,956,948.40x = 172,435,422.60 × 74,142,279.60
  4. Step 4: Simplify right side
    114,956,948.40x = 12,784,755,315,353,358
  5. Step 5: Solve for x
    x = 12,784,755,315,353,358/114,956,948.40
  6. Step 6: Final answer
    x = 111,213,419.40

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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.