Home / 13,615,549.20-20,423,323.80-12,127,514.40

Finding the Fourth Proportional to 13,615,549.20, 20,423,323.80 and 12,127,514.40

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Solution

The fourth proportional to 13,615,549.20, 20,423,323.80 and 12,127,514.40 is: 18,191,271.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615,549.20 : 20,423,323.80 = 12,127,514.40 : x
  2. Step 2: Convert to fraction form
    13,615,549.20/20,423,323.80 = 12,127,514.40/x
  3. Step 3: Cross multiply
    13,615,549.20x = 20,423,323.80 × 12,127,514.40
  4. Step 4: Simplify right side
    13,615,549.20x = 247,684,153,480,362.75
  5. Step 5: Solve for x
    x = 247,684,153,480,362.75/13,615,549.20
  6. Step 6: Final answer
    x = 18,191,271.60

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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.