Home / 98,896,821.40-148,345,232.10-68,285,819.80

Finding the Fourth Proportional to 98,896,821.40, 148,345,232.10 and 68,285,819.80

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Solution

The fourth proportional to 98,896,821.40, 148,345,232.10 and 68,285,819.80 is: 102,428,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,896,821.40 : 148,345,232.10 = 68,285,819.80 : x
  2. Step 2: Convert to fraction form
    98,896,821.40/148,345,232.10 = 68,285,819.80/x
  3. Step 3: Cross multiply
    98,896,821.40x = 148,345,232.10 × 68,285,819.80
  4. Step 4: Simplify right side
    98,896,821.40x = 10,129,875,787,369,774
  5. Step 5: Solve for x
    x = 10,129,875,787,369,774/98,896,821.40
  6. Step 6: Final answer
    x = 102,428,729.70

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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.