Home / 83,490,698.72-125,270,782.90-36,780,278.48

Finding the Fourth Proportional to 83,490,698.72, 125,270,782.90 and 36,780,278.48

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Solution

The fourth proportional to 83,490,698.72, 125,270,782.90 and 36,780,278.48 is: 55,185,719.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,490,698.72 : 125,270,782.90 = 36,780,278.48 : x
  2. Step 2: Convert to fraction form
    83,490,698.72/125,270,782.90 = 36,780,278.48/x
  3. Step 3: Cross multiply
    83,490,698.72x = 125,270,782.90 × 36,780,278.48
  4. Step 4: Simplify right side
    83,490,698.72x = 4,607,494,280,427,788
  5. Step 5: Solve for x
    x = 4,607,494,280,427,788/83,490,698.72
  6. Step 6: Final answer
    x = 55,185,719.50

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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.