Home / 311,813,752.10-430,297,758.34-172,581,533.06

Finding the Fourth Proportional to 311,813,752.10, 430,297,758.34 and 172,581,533.06

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Solution

The fourth proportional to 311,813,752.10, 430,297,758.34 and 172,581,533.06 is: 238,159,626.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,813,752.10 : 430,297,758.34 = 172,581,533.06 : x
  2. Step 2: Convert to fraction form
    311,813,752.10/430,297,758.34 = 172,581,533.06/x
  3. Step 3: Cross multiply
    311,813,752.10x = 430,297,758.34 × 172,581,533.06
  4. Step 4: Simplify right side
    311,813,752.10x = 74,261,446,804,015,664
  5. Step 5: Solve for x
    x = 74,261,446,804,015,664/311,813,752.10
  6. Step 6: Final answer
    x = 238,159,626.72

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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.