Home / 119,433,470.79-164,733,287.12-79,720,978.49

Finding the Fourth Proportional to 119,433,470.79, 164,733,287.12 and 79,720,978.49

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Solution

The fourth proportional to 119,433,470.79, 164,733,287.12 and 79,720,978.49 is: 109,958,278.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,433,470.79 : 164,733,287.12 = 79,720,978.49 : x
  2. Step 2: Convert to fraction form
    119,433,470.79/164,733,287.12 = 79,720,978.49/x
  3. Step 3: Cross multiply
    119,433,470.79x = 164,733,287.12 × 79,720,978.49
  4. Step 4: Simplify right side
    119,433,470.79x = 13,132,698,838,143,036
  5. Step 5: Solve for x
    x = 13,132,698,838,143,036/119,433,470.79
  6. Step 6: Final answer
    x = 109,958,278.46

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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.