Home / 85,703,682.87-118,278,376.52-48,540,574.16

Finding the Fourth Proportional to 85,703,682.87, 118,278,376.52 and 48,540,574.16

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Solution

The fourth proportional to 85,703,682.87, 118,278,376.52 and 48,540,574.16 is: 66,990,123.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,703,682.87 : 118,278,376.52 = 48,540,574.16 : x
  2. Step 2: Convert to fraction form
    85,703,682.87/118,278,376.52 = 48,540,574.16/x
  3. Step 3: Cross multiply
    85,703,682.87x = 118,278,376.52 × 48,540,574.16
  4. Step 4: Simplify right side
    85,703,682.87x = 5,741,300,306,159,368
  5. Step 5: Solve for x
    x = 5,741,300,306,159,368/85,703,682.87
  6. Step 6: Final answer
    x = 66,990,123.57

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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.