Home / 21,185,088,686.43-29,237,489,497.92-15,823,350,543.87

Finding the Fourth Proportional to 21,185,088,686.43, 29,237,489,497.92 and 15,823,350,543.87

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Solution

The fourth proportional to 21,185,088,686.43, 29,237,489,497.92 and 15,823,350,543.87 is: 21,837,767,695.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185,088,686.43 : 29,237,489,497.92 = 15,823,350,543.87 : x
  2. Step 2: Convert to fraction form
    21,185,088,686.43/29,237,489,497.92 = 15,823,350,543.87/x
  3. Step 3: Cross multiply
    21,185,088,686.43x = 29,237,489,497.92 × 15,823,350,543.87
  4. Step 4: Simplify right side
    21,185,088,686.43x = 462,635,045,348,305,862,656
  5. Step 5: Solve for x
    x = 462,635,045,348,305,862,656/21,185,088,686.43
  6. Step 6: Final answer
    x = 21,837,767,695.76

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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.