Home / 15,713,780,660.64-21,681,780,196.32-9,029,485,823.76

Finding the Fourth Proportional to 15,713,780,660.64, 21,681,780,196.32 and 9,029,485,823.76

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Solution

The fourth proportional to 15,713,780,660.64, 21,681,780,196.32 and 9,029,485,823.76 is: 12,458,830,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,713,780,660.64 : 21,681,780,196.32 = 9,029,485,823.76 : x
  2. Step 2: Convert to fraction form
    15,713,780,660.64/21,681,780,196.32 = 9,029,485,823.76/x
  3. Step 3: Cross multiply
    15,713,780,660.64x = 21,681,780,196.32 × 9,029,485,823.76
  4. Step 4: Simplify right side
    15,713,780,660.64x = 195,775,326,916,551,737,344
  5. Step 5: Solve for x
    x = 195,775,326,916,551,737,344/15,713,780,660.64
  6. Step 6: Final answer
    x = 12,458,830,318.72

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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.