Home / 9,206,985,679.79-12,705,616,340.42-5,137,844,720.85

Finding the Fourth Proportional to 9,206,985,679.79, 12,705,616,340.42 and 5,137,844,720.85

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Solution

The fourth proportional to 9,206,985,679.79, 12,705,616,340.42 and 5,137,844,720.85 is: 7,090,212,378.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,206,985,679.79 : 12,705,616,340.42 = 5,137,844,720.85 : x
  2. Step 2: Convert to fraction form
    9,206,985,679.79/12,705,616,340.42 = 5,137,844,720.85/x
  3. Step 3: Cross multiply
    9,206,985,679.79x = 12,705,616,340.42 × 5,137,844,720.85
  4. Step 4: Simplify right side
    9,206,985,679.79x = 65,279,483,839,746,711,552
  5. Step 5: Solve for x
    x = 65,279,483,839,746,711,552/9,206,985,679.79
  6. Step 6: Final answer
    x = 7,090,212,378.96

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.