Home / 13,152,837.60-19,729,256.40-8,381,678.40

Finding the Fourth Proportional to 13,152,837.60, 19,729,256.40 and 8,381,678.40

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Solution

The fourth proportional to 13,152,837.60, 19,729,256.40 and 8,381,678.40 is: 12,572,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152,837.60 : 19,729,256.40 = 8,381,678.40 : x
  2. Step 2: Convert to fraction form
    13,152,837.60/19,729,256.40 = 8,381,678.40/x
  3. Step 3: Cross multiply
    13,152,837.60x = 19,729,256.40 × 8,381,678.40
  4. Step 4: Simplify right side
    13,152,837.60x = 165,364,282,215,941.75
  5. Step 5: Solve for x
    x = 165,364,282,215,941.75/13,152,837.60
  6. Step 6: Final answer
    x = 12,572,517.60

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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.