Home / 77,081,988.17-106,379,870.87-42,281,404.67

Finding the Fourth Proportional to 77,081,988.17, 106,379,870.87 and 42,281,404.67

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Solution

The fourth proportional to 77,081,988.17, 106,379,870.87 and 42,281,404.67 is: 58,352,028.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,081,988.17 : 106,379,870.87 = 42,281,404.67 : x
  2. Step 2: Convert to fraction form
    77,081,988.17/106,379,870.87 = 42,281,404.67/x
  3. Step 3: Cross multiply
    77,081,988.17x = 106,379,870.87 × 42,281,404.67
  4. Step 4: Simplify right side
    77,081,988.17x = 4,497,890,369,368,468
  5. Step 5: Solve for x
    x = 4,497,890,369,368,468/77,081,988.17
  6. Step 6: Final answer
    x = 58,352,028.48

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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.