Home / 21,454,368,856.40-29,606,794,061.93-11,808,892,599.71

Finding the Fourth Proportional to 21,454,368,856.40, 29,606,794,061.93 and 11,808,892,599.71

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Solution

The fourth proportional to 21,454,368,856.40, 29,606,794,061.93 and 11,808,892,599.71 is: 16,296,142,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454,368,856.40 : 29,606,794,061.93 = 11,808,892,599.71 : x
  2. Step 2: Convert to fraction form
    21,454,368,856.40/29,606,794,061.93 = 11,808,892,599.71/x
  3. Step 3: Cross multiply
    21,454,368,856.40x = 29,606,794,061.93 × 11,808,892,599.71
  4. Step 4: Simplify right side
    21,454,368,856.40x = 349,623,451,298,856,042,496
  5. Step 5: Solve for x
    x = 349,623,451,298,856,042,496/21,454,368,856.40
  6. Step 6: Final answer
    x = 16,296,142,461.20

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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.