Home / 84,117,564.40-126,176,346.60-45,853,812.40

Finding the Fourth Proportional to 84,117,564.40, 126,176,346.60 and 45,853,812.40

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Solution

The fourth proportional to 84,117,564.40, 126,176,346.60 and 45,853,812.40 is: 68,780,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,117,564.40 : 126,176,346.60 = 45,853,812.40 : x
  2. Step 2: Convert to fraction form
    84,117,564.40/126,176,346.60 = 45,853,812.40/x
  3. Step 3: Cross multiply
    84,117,564.40x = 126,176,346.60 × 45,853,812.40
  4. Step 4: Simplify right side
    84,117,564.40x = 5,785,666,526,313,777
  5. Step 5: Solve for x
    x = 5,785,666,526,313,777/84,117,564.40
  6. Step 6: Final answer
    x = 68,780,718.60

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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.