Home / 42,617,143.40-63,852,231.90-19,851,348.20

Finding the Fourth Proportional to 42,617,143.40, 63,852,231.90 and 19,851,348.20

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Solution

The fourth proportional to 42,617,143.40, 63,852,231.90 and 19,851,348.20 is: 29,742,793.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,617,143.40 : 63,852,231.90 = 19,851,348.20 : x
  2. Step 2: Convert to fraction form
    42,617,143.40/63,852,231.90 = 19,851,348.20/x
  3. Step 3: Cross multiply
    42,617,143.40x = 63,852,231.90 × 19,851,348.20
  4. Step 4: Simplify right side
    42,617,143.40x = 1,267,552,888,794,047.50
  5. Step 5: Solve for x
    x = 1,267,552,888,794,047.50/42,617,143.40
  6. Step 6: Final answer
    x = 29,742,793.34

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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.