Home / 4,480,139.60-6,720,209.40-1,639,307.60

Finding the Fourth Proportional to 4,480,139.60, 6,720,209.40 and 1,639,307.60

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Solution

The fourth proportional to 4,480,139.60, 6,720,209.40 and 1,639,307.60 is: 2,458,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480,139.60 : 6,720,209.40 = 1,639,307.60 : x
  2. Step 2: Convert to fraction form
    4,480,139.60/6,720,209.40 = 1,639,307.60/x
  3. Step 3: Cross multiply
    4,480,139.60x = 6,720,209.40 × 1,639,307.60
  4. Step 4: Simplify right side
    4,480,139.60x = 11,016,490,343,011.44
  5. Step 5: Solve for x
    x = 11,016,490,343,011.44/4,480,139.60
  6. Step 6: Final answer
    x = 2,458,961.40

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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.