Home / 42,617,151.40-63,852,243.90-19,851,356.20

Finding the Fourth Proportional to 42,617,151.40, 63,852,243.90 and 19,851,356.20

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Solution

The fourth proportional to 42,617,151.40, 63,852,243.90 and 19,851,356.20 is: 29,742,805.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,617,151.40 : 63,852,243.90 = 19,851,356.20 : x
  2. Step 2: Convert to fraction form
    42,617,151.40/63,852,243.90 = 19,851,356.20/x
  3. Step 3: Cross multiply
    42,617,151.40x = 63,852,243.90 × 19,851,356.20
  4. Step 4: Simplify right side
    42,617,151.40x = 1,267,553,637,828,177
  5. Step 5: Solve for x
    x = 1,267,553,637,828,177/42,617,151.40
  6. Step 6: Final answer
    x = 29,742,805.33

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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.