Home / 66,424,986.90-99,637,480.35-40,782,849.30

Finding the Fourth Proportional to 66,424,986.90, 99,637,480.35 and 40,782,849.30

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Solution

The fourth proportional to 66,424,986.90, 99,637,480.35 and 40,782,849.30 is: 61,174,273.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,424,986.90 : 99,637,480.35 = 40,782,849.30 : x
  2. Step 2: Convert to fraction form
    66,424,986.90/99,637,480.35 = 40,782,849.30/x
  3. Step 3: Cross multiply
    66,424,986.90x = 99,637,480.35 × 40,782,849.30
  4. Step 4: Simplify right side
    66,424,986.90x = 4,063,500,345,745,760.50
  5. Step 5: Solve for x
    x = 4,063,500,345,745,760.50/66,424,986.90
  6. Step 6: Final answer
    x = 61,174,273.95

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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.