Home / 78,246,242.28-117,216,681.66-51,238,017

Finding the Fourth Proportional to 78,246,242.28, 117,216,681.66 and 51,238,017

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Solution

The fourth proportional to 78,246,242.28, 117,216,681.66 and 51,238,017 is: 76,757,044.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,246,242.28 : 117,216,681.66 = 51,238,017 : x
  2. Step 2: Convert to fraction form
    78,246,242.28/117,216,681.66 = 51,238,017/x
  3. Step 3: Cross multiply
    78,246,242.28x = 117,216,681.66 × 51,238,017
  4. Step 4: Simplify right side
    78,246,242.28x = 6,005,950,327,578,668
  5. Step 5: Solve for x
    x = 6,005,950,327,578,668/78,246,242.28
  6. Step 6: Final answer
    x = 76,757,044.84

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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.