Home / 77,986,137.76-107,624,232.29-43,178,827.16

Finding the Fourth Proportional to 77,986,137.76, 107,624,232.29 and 43,178,827.16

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Solution

The fourth proportional to 77,986,137.76, 107,624,232.29 and 43,178,827.16 is: 59,588,643.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,986,137.76 : 107,624,232.29 = 43,178,827.16 : x
  2. Step 2: Convert to fraction form
    77,986,137.76/107,624,232.29 = 43,178,827.16/x
  3. Step 3: Cross multiply
    77,986,137.76x = 107,624,232.29 × 43,178,827.16
  4. Step 4: Simplify right side
    77,986,137.76x = 4,647,088,124,654,609
  5. Step 5: Solve for x
    x = 4,647,088,124,654,609/77,986,137.76
  6. Step 6: Final answer
    x = 59,588,643.04

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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.