Home / 42,849,136.20-64,265,110.88-20,980,092.98

Finding the Fourth Proportional to 42,849,136.20, 64,265,110.88 and 20,980,092.98

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Solution

The fourth proportional to 42,849,136.20, 64,265,110.88 and 20,980,092.98 is: 31,465,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,849,136.20 : 64,265,110.88 = 20,980,092.98 : x
  2. Step 2: Convert to fraction form
    42,849,136.20/64,265,110.88 = 20,980,092.98/x
  3. Step 3: Cross multiply
    42,849,136.20x = 64,265,110.88 × 20,980,092.98
  4. Step 4: Simplify right side
    42,849,136.20x = 1,348,288,001,632,409.75
  5. Step 5: Solve for x
    x = 1,348,288,001,632,409.75/42,849,136.20
  6. Step 6: Final answer
    x = 31,465,931.90

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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.