Home / 139,070,771.60-208,523,213.40-85,256,704.40

Finding the Fourth Proportional to 139,070,771.60, 208,523,213.40 and 85,256,704.40

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Solution

The fourth proportional to 139,070,771.60, 208,523,213.40 and 85,256,704.40 is: 127,834,208.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,070,771.60 : 208,523,213.40 = 85,256,704.40 : x
  2. Step 2: Convert to fraction form
    139,070,771.60/208,523,213.40 = 85,256,704.40/x
  3. Step 3: Cross multiply
    139,070,771.60x = 208,523,213.40 × 85,256,704.40
  4. Step 4: Simplify right side
    139,070,771.60x = 17,778,001,965,381,920
  5. Step 5: Solve for x
    x = 17,778,001,965,381,920/139,070,771.60
  6. Step 6: Final answer
    x = 127,834,208.16

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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.