Home / 21,142,216,951.17-29,177,026,512.74-12,111,720,373.29

Finding the Fourth Proportional to 21,142,216,951.17, 29,177,026,512.74 and 12,111,720,373.29

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Solution

The fourth proportional to 21,142,216,951.17, 29,177,026,512.74 and 12,111,720,373.29 is: 16,714,613,574.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,142,216,951.17 : 29,177,026,512.74 = 12,111,720,373.29 : x
  2. Step 2: Convert to fraction form
    21,142,216,951.17/29,177,026,512.74 = 12,111,720,373.29/x
  3. Step 3: Cross multiply
    21,142,216,951.17x = 29,177,026,512.74 × 12,111,720,373.29
  4. Step 4: Simplify right side
    21,142,216,951.17x = 353,383,986,446,375,583,744
  5. Step 5: Solve for x
    x = 353,383,986,446,375,583,744/21,142,216,951.17
  6. Step 6: Final answer
    x = 16,714,613,574.47

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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.