Home / 195,021,615.15-292,628,278.98-78,432,317.10

Finding the Fourth Proportional to 195,021,615.15, 292,628,278.98 and 78,432,317.10

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Solution

The fourth proportional to 195,021,615.15, 292,628,278.98 and 78,432,317.10 is: 117,687,026.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,021,615.15 : 292,628,278.98 = 78,432,317.10 : x
  2. Step 2: Convert to fraction form
    195,021,615.15/292,628,278.98 = 78,432,317.10/x
  3. Step 3: Cross multiply
    195,021,615.15x = 292,628,278.98 × 78,432,317.10
  4. Step 4: Simplify right side
    195,021,615.15x = 22,951,513,969,386,624
  5. Step 5: Solve for x
    x = 22,951,513,969,386,624/195,021,615.15
  6. Step 6: Final answer
    x = 117,687,026.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.