Home / 169,191,568.10-253,792,870.23-80,540,905.70

Finding the Fourth Proportional to 169,191,568.10, 253,792,870.23 and 80,540,905.70

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Solution

The fourth proportional to 169,191,568.10, 253,792,870.23 and 80,540,905.70 is: 120,813,985.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,191,568.10 : 253,792,870.23 = 80,540,905.70 : x
  2. Step 2: Convert to fraction form
    169,191,568.10/253,792,870.23 = 80,540,905.70/x
  3. Step 3: Cross multiply
    169,191,568.10x = 253,792,870.23 × 80,540,905.70
  4. Step 4: Simplify right side
    169,191,568.10x = 20,440,707,628,526,768
  5. Step 5: Solve for x
    x = 20,440,707,628,526,768/169,191,568.10
  6. Step 6: Final answer
    x = 120,813,985.34

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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.