Home / 21,117,812,175.24-29,145,079,162.02-12,544,272,687.87

Finding the Fourth Proportional to 21,117,812,175.24, 29,145,079,162.02 and 12,544,272,687.87

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Solution

The fourth proportional to 21,117,812,175.24, 29,145,079,162.02 and 12,544,272,687.87 is: 17,312,580,369.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,117,812,175.24 : 29,145,079,162.02 = 12,544,272,687.87 : x
  2. Step 2: Convert to fraction form
    21,117,812,175.24/29,145,079,162.02 = 12,544,272,687.87/x
  3. Step 3: Cross multiply
    21,117,812,175.24x = 29,145,079,162.02 × 12,544,272,687.87
  4. Step 4: Simplify right side
    21,117,812,175.24x = 365,603,820,517,936,594,944
  5. Step 5: Solve for x
    x = 365,603,820,517,936,594,944/21,117,812,175.24
  6. Step 6: Final answer
    x = 17,312,580,369.79

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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.