Home / 84,059,715.20-126,189,105.60-83,462,518.40

Finding the Fourth Proportional to 84,059,715.20, 126,189,105.60 and 83,462,518.40

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Solution

The fourth proportional to 84,059,715.20, 126,189,105.60 and 83,462,518.40 is: 125,292,603.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,059,715.20 : 126,189,105.60 = 83,462,518.40 : x
  2. Step 2: Convert to fraction form
    84,059,715.20/126,189,105.60 = 83,462,518.40/x
  3. Step 3: Cross multiply
    84,059,715.20x = 126,189,105.60 × 83,462,518.40
  4. Step 4: Simplify right side
    84,059,715.20x = 10,532,060,548,019,544
  5. Step 5: Solve for x
    x = 10,532,060,548,019,544/84,059,715.20
  6. Step 6: Final answer
    x = 125,292,603.28

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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.