Home / 31,108,849,722.78-42,929,755,738.66-17,375,843,395.07

Finding the Fourth Proportional to 31,108,849,722.78, 42,929,755,738.66 and 17,375,843,395.07

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Solution

The fourth proportional to 31,108,849,722.78, 42,929,755,738.66 and 17,375,843,395.07 is: 23,978,408,695.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,108,849,722.78 : 42,929,755,738.66 = 17,375,843,395.07 : x
  2. Step 2: Convert to fraction form
    31,108,849,722.78/42,929,755,738.66 = 17,375,843,395.07/x
  3. Step 3: Cross multiply
    31,108,849,722.78x = 42,929,755,738.66 × 17,375,843,395.07
  4. Step 4: Simplify right side
    31,108,849,722.78x = 745,940,712,703,478,071,296
  5. Step 5: Solve for x
    x = 745,940,712,703,478,071,296/31,108,849,722.78
  6. Step 6: Final answer
    x = 23,978,408,695.62

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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.