Home / 76,636,771.14-115,005,928.13-42,117,279.32

Finding the Fourth Proportional to 76,636,771.14, 115,005,928.13 and 42,117,279.32

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Solution

The fourth proportional to 76,636,771.14, 115,005,928.13 and 42,117,279.32 is: 63,203,821.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,636,771.14 : 115,005,928.13 = 42,117,279.32 : x
  2. Step 2: Convert to fraction form
    76,636,771.14/115,005,928.13 = 42,117,279.32/x
  3. Step 3: Cross multiply
    76,636,771.14x = 115,005,928.13 × 42,117,279.32
  4. Step 4: Simplify right side
    76,636,771.14x = 4,843,736,797,721,439
  5. Step 5: Solve for x
    x = 4,843,736,797,721,439/76,636,771.14
  6. Step 6: Final answer
    x = 63,203,821.43

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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.