Home / 19,979,205,721.25-29,959,001,988.43-9,883,253,837.16

Finding the Fourth Proportional to 19,979,205,721.25, 29,959,001,988.43 and 9,883,253,837.16

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Solution

The fourth proportional to 19,979,205,721.25, 29,959,001,988.43 and 9,883,253,837.16 is: 14,820,029,659.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979,205,721.25 : 29,959,001,988.43 = 9,883,253,837.16 : x
  2. Step 2: Convert to fraction form
    19,979,205,721.25/29,959,001,988.43 = 9,883,253,837.16/x
  3. Step 3: Cross multiply
    19,979,205,721.25x = 29,959,001,988.43 × 9,883,253,837.16
  4. Step 4: Simplify right side
    19,979,205,721.25x = 296,092,421,359,605,186,560
  5. Step 5: Solve for x
    x = 296,092,421,359,605,186,560/19,979,205,721.25
  6. Step 6: Final answer
    x = 14,820,029,659.38

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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.