Home / 172,742,014.30-258,947,133.45-99,884,004.70

Finding the Fourth Proportional to 172,742,014.30, 258,947,133.45 and 99,884,004.70

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Solution

The fourth proportional to 172,742,014.30, 258,947,133.45 and 99,884,004.70 is: 149,730,086.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,742,014.30 : 258,947,133.45 = 99,884,004.70 : x
  2. Step 2: Convert to fraction form
    172,742,014.30/258,947,133.45 = 99,884,004.70/x
  3. Step 3: Cross multiply
    172,742,014.30x = 258,947,133.45 × 99,884,004.70
  4. Step 4: Simplify right side
    172,742,014.30x = 25,864,676,694,571,328
  5. Step 5: Solve for x
    x = 25,864,676,694,571,328/172,742,014.30
  6. Step 6: Final answer
    x = 149,730,086.22

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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.