Home / 77,429,721.69-106,856,061.84-42,625,650.60

Finding the Fourth Proportional to 77,429,721.69, 106,856,061.84 and 42,625,650.60

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Solution

The fourth proportional to 77,429,721.69, 106,856,061.84 and 42,625,650.60 is: 58,825,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,429,721.69 : 106,856,061.84 = 42,625,650.60 : x
  2. Step 2: Convert to fraction form
    77,429,721.69/106,856,061.84 = 42,625,650.60/x
  3. Step 3: Cross multiply
    77,429,721.69x = 106,856,061.84 × 42,625,650.60
  4. Step 4: Simplify right side
    77,429,721.69x = 4,554,809,156,483,833
  5. Step 5: Solve for x
    x = 4,554,809,156,483,833/77,429,721.69
  6. Step 6: Final answer
    x = 58,825,074.62

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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.