Home / 121,402,705.20-182,104,057.80-108,648,121.20

Finding the Fourth Proportional to 121,402,705.20, 182,104,057.80 and 108,648,121.20

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Solution

The fourth proportional to 121,402,705.20, 182,104,057.80 and 108,648,121.20 is: 162,972,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,402,705.20 : 182,104,057.80 = 108,648,121.20 : x
  2. Step 2: Convert to fraction form
    121,402,705.20/182,104,057.80 = 108,648,121.20/x
  3. Step 3: Cross multiply
    121,402,705.20x = 182,104,057.80 × 108,648,121.20
  4. Step 4: Simplify right side
    121,402,705.20x = 19,785,263,742,866,208
  5. Step 5: Solve for x
    x = 19,785,263,742,866,208/121,402,705.20
  6. Step 6: Final answer
    x = 162,972,181.80

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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.