Home / 13,124,941.60-19,687,412.40-12,085,679.20

Finding the Fourth Proportional to 13,124,941.60, 19,687,412.40 and 12,085,679.20

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Solution

The fourth proportional to 13,124,941.60, 19,687,412.40 and 12,085,679.20 is: 18,128,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124,941.60 : 19,687,412.40 = 12,085,679.20 : x
  2. Step 2: Convert to fraction form
    13,124,941.60/19,687,412.40 = 12,085,679.20/x
  3. Step 3: Cross multiply
    13,124,941.60x = 19,687,412.40 × 12,085,679.20
  4. Step 4: Simplify right side
    13,124,941.60x = 237,935,750,544,502.06
  5. Step 5: Solve for x
    x = 237,935,750,544,502.06/13,124,941.60
  6. Step 6: Final answer
    x = 18,128,518.80

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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.