Home / 77,082,668.69-106,380,809.17-42,282,085.20

Finding the Fourth Proportional to 77,082,668.69, 106,380,809.17 and 42,282,085.20

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Solution

The fourth proportional to 77,082,668.69, 106,380,809.17 and 42,282,085.20 is: 58,352,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,082,668.69 : 106,380,809.17 = 42,282,085.20 : x
  2. Step 2: Convert to fraction form
    77,082,668.69/106,380,809.17 = 42,282,085.20/x
  3. Step 3: Cross multiply
    77,082,668.69x = 106,380,809.17 × 42,282,085.20
  4. Step 4: Simplify right side
    77,082,668.69x = 4,498,002,437,302,266
  5. Step 5: Solve for x
    x = 4,498,002,437,302,266/77,082,668.69
  6. Step 6: Final answer
    x = 58,352,967.20

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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.