Home / 90,387,006,252.51-124,734,088,988.51-49,741,917,729.02

Finding the Fourth Proportional to 90,387,006,252.51, 124,734,088,988.51 and 49,741,917,729.02

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Solution

The fourth proportional to 90,387,006,252.51, 124,734,088,988.51 and 49,741,917,729.02 is: 68,643,857,670.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,387,006,252.51 : 124,734,088,988.51 = 49,741,917,729.02 : x
  2. Step 2: Convert to fraction form
    90,387,006,252.51/124,734,088,988.51 = 49,741,917,729.02/x
  3. Step 3: Cross multiply
    90,387,006,252.51x = 124,734,088,988.51 × 49,741,917,729.02
  4. Step 4: Simplify right side
    90,387,006,252.51x = 6,204,512,792,470,722,969,600
  5. Step 5: Solve for x
    x = 6,204,512,792,470,722,969,600/90,387,006,252.51
  6. Step 6: Final answer
    x = 68,643,857,670.62

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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.