Home / 8,148,785,781.60-12,223,178,672.40-7,838,849,390.40

Finding the Fourth Proportional to 8,148,785,781.60, 12,223,178,672.40 and 7,838,849,390.40

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Solution

The fourth proportional to 8,148,785,781.60, 12,223,178,672.40 and 7,838,849,390.40 is: 11,758,274,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148,785,781.60 : 12,223,178,672.40 = 7,838,849,390.40 : x
  2. Step 2: Convert to fraction form
    8,148,785,781.60/12,223,178,672.40 = 7,838,849,390.40/x
  3. Step 3: Cross multiply
    8,148,785,781.60x = 12,223,178,672.40 × 7,838,849,390.40
  4. Step 4: Simplify right side
    8,148,785,781.60x = 95,815,656,684,893,011,968
  5. Step 5: Solve for x
    x = 95,815,656,684,893,011,968/8,148,785,781.60
  6. Step 6: Final answer
    x = 11,758,274,085.60

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1.5x scale

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.