Home / 15,915,067,953.38-21,962,862,056.20-8,681,273,072.32

Finding the Fourth Proportional to 15,915,067,953.38, 21,962,862,056.20 and 8,681,273,072.32

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Solution

The fourth proportional to 15,915,067,953.38, 21,962,862,056.20 and 8,681,273,072.32 is: 11,980,194,085.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915,067,953.38 : 21,962,862,056.20 = 8,681,273,072.32 : x
  2. Step 2: Convert to fraction form
    15,915,067,953.38/21,962,862,056.20 = 8,681,273,072.32/x
  3. Step 3: Cross multiply
    15,915,067,953.38x = 21,962,862,056.20 × 8,681,273,072.32
  4. Step 4: Simplify right side
    15,915,067,953.38x = 190,665,602,959,457,943,552
  5. Step 5: Solve for x
    x = 190,665,602,959,457,943,552/15,915,067,953.38
  6. Step 6: Final answer
    x = 11,980,194,085.13

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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.