Home / 69,126,925,341.20-103,690,388,011.80-66,418,040,656.40

Finding the Fourth Proportional to 69,126,925,341.20, 103,690,388,011.80 and 66,418,040,656.40

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Solution

The fourth proportional to 69,126,925,341.20, 103,690,388,011.80 and 66,418,040,656.40 is: 99,627,060,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,126,925,341.20 : 103,690,388,011.80 = 66,418,040,656.40 : x
  2. Step 2: Convert to fraction form
    69,126,925,341.20/103,690,388,011.80 = 66,418,040,656.40/x
  3. Step 3: Cross multiply
    69,126,925,341.20x = 103,690,388,011.80 × 66,418,040,656.40
  4. Step 4: Simplify right side
    69,126,925,341.20x = 6,886,912,406,645,623,488,512
  5. Step 5: Solve for x
    x = 6,886,912,406,645,623,488,512/69,126,925,341.20
  6. Step 6: Final answer
    x = 99,627,060,984.60

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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.