Home / 20,604,003.60-30,906,005.40-13,039,510.80

Finding the Fourth Proportional to 20,604,003.60, 30,906,005.40 and 13,039,510.80

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Solution

The fourth proportional to 20,604,003.60, 30,906,005.40 and 13,039,510.80 is: 19,559,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,604,003.60 : 30,906,005.40 = 13,039,510.80 : x
  2. Step 2: Convert to fraction form
    20,604,003.60/30,906,005.40 = 13,039,510.80/x
  3. Step 3: Cross multiply
    20,604,003.60x = 30,906,005.40 × 13,039,510.80
  4. Step 4: Simplify right side
    20,604,003.60x = 402,999,191,198,158.31
  5. Step 5: Solve for x
    x = 402,999,191,198,158.31/20,604,003.60
  6. Step 6: Final answer
    x = 19,559,266.20

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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.