Home / 9,109,158,857.40-13,663,738,286.10-7,272,498,761.40

Finding the Fourth Proportional to 9,109,158,857.40, 13,663,738,286.10 and 7,272,498,761.40

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Solution

The fourth proportional to 9,109,158,857.40, 13,663,738,286.10 and 7,272,498,761.40 is: 10,908,748,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109,158,857.40 : 13,663,738,286.10 = 7,272,498,761.40 : x
  2. Step 2: Convert to fraction form
    9,109,158,857.40/13,663,738,286.10 = 7,272,498,761.40/x
  3. Step 3: Cross multiply
    9,109,158,857.40x = 13,663,738,286.10 × 7,272,498,761.40
  4. Step 4: Simplify right side
    9,109,158,857.40x = 99,369,519,761,756,012,544
  5. Step 5: Solve for x
    x = 99,369,519,761,756,012,544/9,109,158,857.40
  6. Step 6: Final answer
    x = 10,908,748,142.10

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Double scale
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Similar ratio
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1.5x scale

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.