Home / 15,016,713,971.66-20,740,264,354.95-9,889,680,472.82

Finding the Fourth Proportional to 15,016,713,971.66, 20,740,264,354.95 and 9,889,680,472.82

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Solution

The fourth proportional to 15,016,713,971.66, 20,740,264,354.95 and 9,889,680,472.82 is: 13,659,085,987.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016,713,971.66 : 20,740,264,354.95 = 9,889,680,472.82 : x
  2. Step 2: Convert to fraction form
    15,016,713,971.66/20,740,264,354.95 = 9,889,680,472.82/x
  3. Step 3: Cross multiply
    15,016,713,971.66x = 20,740,264,354.95 × 9,889,680,472.82
  4. Step 4: Simplify right side
    15,016,713,971.66x = 205,114,587,392,273,711,104
  5. Step 5: Solve for x
    x = 205,114,587,392,273,711,104/15,016,713,971.66
  6. Step 6: Final answer
    x = 13,659,085,987.74

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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.