Home / 121,370,686.80-167,459,254.32-69,158,609.52

Finding the Fourth Proportional to 121,370,686.80, 167,459,254.32 and 69,158,609.52

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Solution

The fourth proportional to 121,370,686.80, 167,459,254.32 and 69,158,609.52 is: 95,420,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,370,686.80 : 167,459,254.32 = 69,158,609.52 : x
  2. Step 2: Convert to fraction form
    121,370,686.80/167,459,254.32 = 69,158,609.52/x
  3. Step 3: Cross multiply
    121,370,686.80x = 167,459,254.32 × 69,158,609.52
  4. Step 4: Simplify right side
    121,370,686.80x = 11,581,249,180,027,252
  5. Step 5: Solve for x
    x = 11,581,249,180,027,252/121,370,686.80
  6. Step 6: Final answer
    x = 95,420,479.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.