Home / 13,155,008.40-19,732,512.60-8,620,045.20

Finding the Fourth Proportional to 13,155,008.40, 19,732,512.60 and 8,620,045.20

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Solution

The fourth proportional to 13,155,008.40, 19,732,512.60 and 8,620,045.20 is: 12,930,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155,008.40 : 19,732,512.60 = 8,620,045.20 : x
  2. Step 2: Convert to fraction form
    13,155,008.40/19,732,512.60 = 8,620,045.20/x
  3. Step 3: Cross multiply
    13,155,008.40x = 19,732,512.60 × 8,620,045.20
  4. Step 4: Simplify right side
    13,155,008.40x = 170,095,150,521,569.53
  5. Step 5: Solve for x
    x = 170,095,150,521,569.53/13,155,008.40
  6. Step 6: Final answer
    x = 12,930,067.80

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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.