Home / 10,178,177.40-15,265,662.30-8,460,079.92

Finding the Fourth Proportional to 10,178,177.40, 15,265,662.30 and 8,460,079.92

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Solution

The fourth proportional to 10,178,177.40, 15,265,662.30 and 8,460,079.92 is: 12,688,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178,177.40 : 15,265,662.30 = 8,460,079.92 : x
  2. Step 2: Convert to fraction form
    10,178,177.40/15,265,662.30 = 8,460,079.92/x
  3. Step 3: Cross multiply
    10,178,177.40x = 15,265,662.30 × 8,460,079.92
  4. Step 4: Simplify right side
    10,178,177.40x = 129,148,723,089,731.02
  5. Step 5: Solve for x
    x = 129,148,723,089,731.02/10,178,177.40
  6. Step 6: Final answer
    x = 12,688,786.80

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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.