Home / 21,142,216,988.90-29,177,026,564.84-12,111,720,411.26

Finding the Fourth Proportional to 21,142,216,988.90, 29,177,026,564.84 and 12,111,720,411.26

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Solution

The fourth proportional to 21,142,216,988.90, 29,177,026,564.84 and 12,111,720,411.26 is: 16,714,613,626.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,142,216,988.90 : 29,177,026,564.84 = 12,111,720,411.26 : x
  2. Step 2: Convert to fraction form
    21,142,216,988.90/29,177,026,564.84 = 12,111,720,411.26/x
  3. Step 3: Cross multiply
    21,142,216,988.90x = 29,177,026,564.84 × 12,111,720,411.26
  4. Step 4: Simplify right side
    21,142,216,988.90x = 353,383,988,185,247,907,840
  5. Step 5: Solve for x
    x = 353,383,988,185,247,907,840/21,142,216,988.90
  6. Step 6: Final answer
    x = 16,714,613,626.89

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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.