Home / 10,890,056.40-16,335,084.60-9,189,445.20

Finding the Fourth Proportional to 10,890,056.40, 16,335,084.60 and 9,189,445.20

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Solution

The fourth proportional to 10,890,056.40, 16,335,084.60 and 9,189,445.20 is: 13,784,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890,056.40 : 16,335,084.60 = 9,189,445.20 : x
  2. Step 2: Convert to fraction form
    10,890,056.40/16,335,084.60 = 9,189,445.20/x
  3. Step 3: Cross multiply
    10,890,056.40x = 16,335,084.60 × 9,189,445.20
  4. Step 4: Simplify right side
    10,890,056.40x = 150,110,364,769,063.91
  5. Step 5: Solve for x
    x = 150,110,364,769,063.91/10,890,056.40
  6. Step 6: Final answer
    x = 13,784,167.80

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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.