Home / 13,100,461.20-19,650,691.80-12,547,587.60

Finding the Fourth Proportional to 13,100,461.20, 19,650,691.80 and 12,547,587.60

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Solution

The fourth proportional to 13,100,461.20, 19,650,691.80 and 12,547,587.60 is: 18,821,381.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100,461.20 : 19,650,691.80 = 12,547,587.60 : x
  2. Step 2: Convert to fraction form
    13,100,461.20/19,650,691.80 = 12,547,587.60/x
  3. Step 3: Cross multiply
    13,100,461.20x = 19,650,691.80 × 12,547,587.60
  4. Step 4: Simplify right side
    13,100,461.20x = 246,568,776,761,101.69
  5. Step 5: Solve for x
    x = 246,568,776,761,101.69/13,100,461.20
  6. Step 6: Final answer
    x = 18,821,381.40

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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.