Home / 77,124,590.96-115,610,249.10-38,668,732.88

Finding the Fourth Proportional to 77,124,590.96, 115,610,249.10 and 38,668,732.88

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Solution

The fourth proportional to 77,124,590.96, 115,610,249.10 and 38,668,732.88 is: 57,964,674.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,124,590.96 : 115,610,249.10 = 38,668,732.88 : x
  2. Step 2: Convert to fraction form
    77,124,590.96/115,610,249.10 = 38,668,732.88/x
  3. Step 3: Cross multiply
    77,124,590.96x = 115,610,249.10 × 38,668,732.88
  4. Step 4: Simplify right side
    77,124,590.96x = 4,470,501,840,638,160.50
  5. Step 5: Solve for x
    x = 4,470,501,840,638,160.50/77,124,590.96
  6. Step 6: Final answer
    x = 57,964,674.89

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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.