Home / 21,142,216,974.93-29,177,026,545.56-12,111,720,397.08

Finding the Fourth Proportional to 21,142,216,974.93, 29,177,026,545.56 and 12,111,720,397.08

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Solution

The fourth proportional to 21,142,216,974.93, 29,177,026,545.56 and 12,111,720,397.08 is: 16,714,613,607.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,142,216,974.93 : 29,177,026,545.56 = 12,111,720,397.08 : x
  2. Step 2: Convert to fraction form
    21,142,216,974.93/29,177,026,545.56 = 12,111,720,397.08/x
  3. Step 3: Cross multiply
    21,142,216,974.93x = 29,177,026,545.56 × 12,111,720,397.08
  4. Step 4: Simplify right side
    21,142,216,974.93x = 353,383,987,537,943,134,208
  5. Step 5: Solve for x
    x = 353,383,987,537,943,134,208/21,142,216,974.93
  6. Step 6: Final answer
    x = 16,714,613,607.31

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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.