Home / 13,609,875.60-20,414,813.40-6,807,430.80

Finding the Fourth Proportional to 13,609,875.60, 20,414,813.40 and 6,807,430.80

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Solution

The fourth proportional to 13,609,875.60, 20,414,813.40 and 6,807,430.80 is: 10,211,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,875.60 : 20,414,813.40 = 6,807,430.80 : x
  2. Step 2: Convert to fraction form
    13,609,875.60/20,414,813.40 = 6,807,430.80/x
  3. Step 3: Cross multiply
    13,609,875.60x = 20,414,813.40 × 6,807,430.80
  4. Step 4: Simplify right side
    13,609,875.60x = 138,972,429,515,412.70
  5. Step 5: Solve for x
    x = 138,972,429,515,412.70/13,609,875.60
  6. Step 6: Final answer
    x = 10,211,146.20

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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.