Home / 215,262,158.91-297,071,438.40-121,208,649.27

Finding the Fourth Proportional to 215,262,158.91, 297,071,438.40 and 121,208,649.27

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Solution

The fourth proportional to 215,262,158.91, 297,071,438.40 and 121,208,649.27 is: 167,273,374.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,262,158.91 : 297,071,438.40 = 121,208,649.27 : x
  2. Step 2: Convert to fraction form
    215,262,158.91/297,071,438.40 = 121,208,649.27/x
  3. Step 3: Cross multiply
    215,262,158.91x = 297,071,438.40 × 121,208,649.27
  4. Step 4: Simplify right side
    215,262,158.91x = 36,007,627,785,160,004
  5. Step 5: Solve for x
    x = 36,007,627,785,160,004/215,262,158.91
  6. Step 6: Final answer
    x = 167,273,374.79

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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.