Home / 42,876,085.80-64,314,128.70-36,711,370.20

Finding the Fourth Proportional to 42,876,085.80, 64,314,128.70 and 36,711,370.20

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Solution

The fourth proportional to 42,876,085.80, 64,314,128.70 and 36,711,370.20 is: 55,067,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,876,085.80 : 64,314,128.70 = 36,711,370.20 : x
  2. Step 2: Convert to fraction form
    42,876,085.80/64,314,128.70 = 36,711,370.20/x
  3. Step 3: Cross multiply
    42,876,085.80x = 64,314,128.70 × 36,711,370.20
  4. Step 4: Simplify right side
    42,876,085.80x = 2,361,059,787,796,145
  5. Step 5: Solve for x
    x = 2,361,059,787,796,145/42,876,085.80
  6. Step 6: Final answer
    x = 55,067,055.30

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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.