Home / 76,763,417.20-114,977,164.20-66,685,721.20

Finding the Fourth Proportional to 76,763,417.20, 114,977,164.20 and 66,685,721.20

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Solution

The fourth proportional to 76,763,417.20, 114,977,164.20 and 66,685,721.20 is: 99,882,670.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,763,417.20 : 114,977,164.20 = 66,685,721.20 : x
  2. Step 2: Convert to fraction form
    76,763,417.20/114,977,164.20 = 66,685,721.20/x
  3. Step 3: Cross multiply
    76,763,417.20x = 114,977,164.20 × 66,685,721.20
  4. Step 4: Simplify right side
    76,763,417.20x = 7,667,335,116,207,822
  5. Step 5: Solve for x
    x = 7,667,335,116,207,822/76,763,417.20
  6. Step 6: Final answer
    x = 99,882,670.62

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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.