Home / 172,742,012.80-258,947,131.20-99,884,003.20

Finding the Fourth Proportional to 172,742,012.80, 258,947,131.20 and 99,884,003.20

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Solution

The fourth proportional to 172,742,012.80, 258,947,131.20 and 99,884,003.20 is: 149,730,083.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,742,012.80 : 258,947,131.20 = 99,884,003.20 : x
  2. Step 2: Convert to fraction form
    172,742,012.80/258,947,131.20 = 99,884,003.20/x
  3. Step 3: Cross multiply
    172,742,012.80x = 258,947,131.20 × 99,884,003.20
  4. Step 4: Simplify right side
    172,742,012.80x = 25,864,676,081,411,620
  5. Step 5: Solve for x
    x = 25,864,676,081,411,620/172,742,012.80
  6. Step 6: Final answer
    x = 149,730,083.97

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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.