Home / 77,327,880.78-106,709,606.91-42,518,500.14

Finding the Fourth Proportional to 77,327,880.78, 106,709,606.91 and 42,518,500.14

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Solution

The fourth proportional to 77,327,880.78, 106,709,606.91 and 42,518,500.14 is: 58,673,952.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,327,880.78 : 106,709,606.91 = 42,518,500.14 : x
  2. Step 2: Convert to fraction form
    77,327,880.78/106,709,606.91 = 42,518,500.14/x
  3. Step 3: Cross multiply
    77,327,880.78x = 106,709,606.91 × 42,518,500.14
  4. Step 4: Simplify right side
    77,327,880.78x = 4,537,132,436,342,180
  5. Step 5: Solve for x
    x = 4,537,132,436,342,180/77,327,880.78
  6. Step 6: Final answer
    x = 58,673,952.92

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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.