Home / 8,642,913,082.88-11,920,639,410.90-7,439,302,848.87

Finding the Fourth Proportional to 8,642,913,082.88, 11,920,639,410.90 and 7,439,302,848.87

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Solution

The fourth proportional to 8,642,913,082.88, 11,920,639,410.90 and 7,439,302,848.87 is: 10,260,573,706.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642,913,082.88 : 11,920,639,410.90 = 7,439,302,848.87 : x
  2. Step 2: Convert to fraction form
    8,642,913,082.88/11,920,639,410.90 = 7,439,302,848.87/x
  3. Step 3: Cross multiply
    8,642,913,082.88x = 11,920,639,410.90 × 7,439,302,848.87
  4. Step 4: Simplify right side
    8,642,913,082.88x = 88,681,246,729,899,982,848
  5. Step 5: Solve for x
    x = 88,681,246,729,899,982,848/8,642,913,082.88
  6. Step 6: Final answer
    x = 10,260,573,706.98

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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.