Home / 42,576,187.20-63,864,280.80-21,014,116.80

Finding the Fourth Proportional to 42,576,187.20, 63,864,280.80 and 21,014,116.80

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Solution

The fourth proportional to 42,576,187.20, 63,864,280.80 and 21,014,116.80 is: 31,521,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,576,187.20 : 63,864,280.80 = 21,014,116.80 : x
  2. Step 2: Convert to fraction form
    42,576,187.20/63,864,280.80 = 21,014,116.80/x
  3. Step 3: Cross multiply
    42,576,187.20x = 63,864,280.80 × 21,014,116.80
  4. Step 4: Simplify right side
    42,576,187.20x = 1,342,051,456,079,197.50
  5. Step 5: Solve for x
    x = 1,342,051,456,079,197.50/42,576,187.20
  6. Step 6: Final answer
    x = 31,521,175.20

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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.