Home / 8,312,378.40-12,476,440.80-5,123,732.40

Finding the Fourth Proportional to 8,312,378.40, 12,476,440.80 and 5,123,732.40

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Solution

The fourth proportional to 8,312,378.40, 12,476,440.80 and 5,123,732.40 is: 7,690,451.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312,378.40 : 12,476,440.80 = 5,123,732.40 : x
  2. Step 2: Convert to fraction form
    8,312,378.40/12,476,440.80 = 5,123,732.40/x
  3. Step 3: Cross multiply
    8,312,378.40x = 12,476,440.80 × 5,123,732.40
  4. Step 4: Simplify right side
    8,312,378.40x = 63,925,943,963,641.93
  5. Step 5: Solve for x
    x = 63,925,943,963,641.93/8,312,378.40
  6. Step 6: Final answer
    x = 7,690,451.62

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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.