Home / 65,501,205.60-98,251,808.40-31,405,000.80

Finding the Fourth Proportional to 65,501,205.60, 98,251,808.40 and 31,405,000.80

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Solution

The fourth proportional to 65,501,205.60, 98,251,808.40 and 31,405,000.80 is: 47,107,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,501,205.60 : 98,251,808.40 = 31,405,000.80 : x
  2. Step 2: Convert to fraction form
    65,501,205.60/98,251,808.40 = 31,405,000.80/x
  3. Step 3: Cross multiply
    65,501,205.60x = 98,251,808.40 × 31,405,000.80
  4. Step 4: Simplify right side
    65,501,205.60x = 3,085,598,121,403,447
  5. Step 5: Solve for x
    x = 3,085,598,121,403,447/65,501,205.60
  6. Step 6: Final answer
    x = 47,107,501.20

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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.