Home / 215,235,501.53-297,034,411.37-121,155,718.73

Finding the Fourth Proportional to 215,235,501.53, 297,034,411.37 and 121,155,718.73

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Solution

The fourth proportional to 215,235,501.53, 297,034,411.37 and 121,155,718.73 is: 167,200,193.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,235,501.53 : 297,034,411.37 = 121,155,718.73 : x
  2. Step 2: Convert to fraction form
    215,235,501.53/297,034,411.37 = 121,155,718.73/x
  3. Step 3: Cross multiply
    215,235,501.53x = 297,034,411.37 × 121,155,718.73
  4. Step 4: Simplify right side
    215,235,501.53x = 35,987,417,594,983,884
  5. Step 5: Solve for x
    x = 35,987,417,594,983,884/215,235,501.53
  6. Step 6: Final answer
    x = 167,200,193.93

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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.