Home / 8,990,418.15-12,404,384.96-5,122,856.88

Finding the Fourth Proportional to 8,990,418.15, 12,404,384.96 and 5,122,856.88

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Solution

The fourth proportional to 8,990,418.15, 12,404,384.96 and 5,122,856.88 is: 7,068,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990,418.15 : 12,404,384.96 = 5,122,856.88 : x
  2. Step 2: Convert to fraction form
    8,990,418.15/12,404,384.96 = 5,122,856.88/x
  3. Step 3: Cross multiply
    8,990,418.15x = 12,404,384.96 × 5,122,856.88
  4. Step 4: Simplify right side
    8,990,418.15x = 63,545,888,808,890.24
  5. Step 5: Solve for x
    x = 63,545,888,808,890.24/8,990,418.15
  6. Step 6: Final answer
    x = 7,068,179.45

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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.