Home / 12,502,427.60-18,759,862.20-7,115,214.80

Finding the Fourth Proportional to 12,502,427.60, 18,759,862.20 and 7,115,214.80

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Solution

The fourth proportional to 12,502,427.60, 18,759,862.20 and 7,115,214.80 is: 10,676,362.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,502,427.60 : 18,759,862.20 = 7,115,214.80 : x
  2. Step 2: Convert to fraction form
    12,502,427.60/18,759,862.20 = 7,115,214.80/x
  3. Step 3: Cross multiply
    12,502,427.60x = 18,759,862.20 × 7,115,214.80
  4. Step 4: Simplify right side
    12,502,427.60x = 133,480,449,171,400.55
  5. Step 5: Solve for x
    x = 133,480,449,171,400.55/12,502,427.60
  6. Step 6: Final answer
    x = 10,676,362.50

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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.