Home / 13,615,573.20-20,423,359.80-12,127,538.40

Finding the Fourth Proportional to 13,615,573.20, 20,423,359.80 and 12,127,538.40

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Solution

The fourth proportional to 13,615,573.20, 20,423,359.80 and 12,127,538.40 is: 18,191,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615,573.20 : 20,423,359.80 = 12,127,538.40 : x
  2. Step 2: Convert to fraction form
    13,615,573.20/20,423,359.80 = 12,127,538.40/x
  3. Step 3: Cross multiply
    13,615,573.20x = 20,423,359.80 × 12,127,538.40
  4. Step 4: Simplify right side
    13,615,573.20x = 247,685,080,231,516.34
  5. Step 5: Solve for x
    x = 247,685,080,231,516.34/13,615,573.20
  6. Step 6: Final answer
    x = 18,191,307.60

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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.