Home / 77,081,984.46-106,379,865.69-42,281,400.90

Finding the Fourth Proportional to 77,081,984.46, 106,379,865.69 and 42,281,400.90

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Solution

The fourth proportional to 77,081,984.46, 106,379,865.69 and 42,281,400.90 is: 58,352,023.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,081,984.46 : 106,379,865.69 = 42,281,400.90 : x
  2. Step 2: Convert to fraction form
    77,081,984.46/106,379,865.69 = 42,281,400.90/x
  3. Step 3: Cross multiply
    77,081,984.46x = 106,379,865.69 × 42,281,400.90
  4. Step 4: Simplify right side
    77,081,984.46x = 4,497,889,748,927,045
  5. Step 5: Solve for x
    x = 4,497,889,748,927,045/77,081,984.46
  6. Step 6: Final answer
    x = 58,352,023.24

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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.