Home / 18,712,215.60-28,068,323.40-9,133,738.80

Finding the Fourth Proportional to 18,712,215.60, 28,068,323.40 and 9,133,738.80

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Solution

The fourth proportional to 18,712,215.60, 28,068,323.40 and 9,133,738.80 is: 13,700,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712,215.60 : 28,068,323.40 = 9,133,738.80 : x
  2. Step 2: Convert to fraction form
    18,712,215.60/28,068,323.40 = 9,133,738.80/x
  3. Step 3: Cross multiply
    18,712,215.60x = 28,068,323.40 × 9,133,738.80
  4. Step 4: Simplify right side
    18,712,215.60x = 256,368,734,489,527.94
  5. Step 5: Solve for x
    x = 256,368,734,489,527.94/18,712,215.60
  6. Step 6: Final answer
    x = 13,700,608.20

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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.