Home / 19,424,142.40-29,139,712.80-8,065,739.20

Finding the Fourth Proportional to 19,424,142.40, 29,139,712.80 and 8,065,739.20

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Solution

The fourth proportional to 19,424,142.40, 29,139,712.80 and 8,065,739.20 is: 12,100,061.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,424,142.40 : 29,139,712.80 = 8,065,739.20 : x
  2. Step 2: Convert to fraction form
    19,424,142.40/29,139,712.80 = 8,065,739.20/x
  3. Step 3: Cross multiply
    19,424,142.40x = 29,139,712.80 × 8,065,739.20
  4. Step 4: Simplify right side
    19,424,142.40x = 235,033,323,807,701.78
  5. Step 5: Solve for x
    x = 235,033,323,807,701.78/19,424,142.40
  6. Step 6: Final answer
    x = 12,100,061.82

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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.