Home / 8,148,785,915.10-12,223,178,872.65-7,838,849,523.90

Finding the Fourth Proportional to 8,148,785,915.10, 12,223,178,872.65 and 7,838,849,523.90

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Solution

The fourth proportional to 8,148,785,915.10, 12,223,178,872.65 and 7,838,849,523.90 is: 11,758,274,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148,785,915.10 : 12,223,178,872.65 = 7,838,849,523.90 : x
  2. Step 2: Convert to fraction form
    8,148,785,915.10/12,223,178,872.65 = 7,838,849,523.90/x
  3. Step 3: Cross multiply
    8,148,785,915.10x = 12,223,178,872.65 × 7,838,849,523.90
  4. Step 4: Simplify right side
    8,148,785,915.10x = 95,815,659,886,416,986,112
  5. Step 5: Solve for x
    x = 95,815,659,886,416,986,112/8,148,785,915.10
  6. Step 6: Final answer
    x = 11,758,274,285.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.