Home / 69,409,812.60-104,043,860.10-40,641,139.80

Finding the Fourth Proportional to 69,409,812.60, 104,043,860.10 and 40,641,139.80

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Solution

The fourth proportional to 69,409,812.60, 104,043,860.10 and 40,641,139.80 is: 60,920,220.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,409,812.60 : 104,043,860.10 = 40,641,139.80 : x
  2. Step 2: Convert to fraction form
    69,409,812.60/104,043,860.10 = 40,641,139.80/x
  3. Step 3: Cross multiply
    69,409,812.60x = 104,043,860.10 × 40,641,139.80
  4. Step 4: Simplify right side
    69,409,812.60x = 4,228,461,063,655,741.50
  5. Step 5: Solve for x
    x = 4,228,461,063,655,741.50/69,409,812.60
  6. Step 6: Final answer
    x = 60,920,220.14

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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.