Home / 31,108,848.60-42,918,237.54-19,486,178.04

Finding the Fourth Proportional to 31,108,848.60, 42,918,237.54 and 19,486,178.04

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Solution

The fourth proportional to 31,108,848.60, 42,918,237.54 and 19,486,178.04 is: 26,883,425.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,108,848.60 : 42,918,237.54 = 19,486,178.04 : x
  2. Step 2: Convert to fraction form
    31,108,848.60/42,918,237.54 = 19,486,178.04/x
  3. Step 3: Cross multiply
    31,108,848.60x = 42,918,237.54 × 19,486,178.04
  4. Step 4: Simplify right side
    31,108,848.60x = 836,312,417,867,451.62
  5. Step 5: Solve for x
    x = 836,312,417,867,451.62/31,108,848.60
  6. Step 6: Final answer
    x = 26,883,425.63

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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.