Home / 462,454,318.12-638,128,303.38-253,555,489.72

Finding the Fourth Proportional to 462,454,318.12, 638,128,303.38 and 253,555,489.72

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Solution

The fourth proportional to 462,454,318.12, 638,128,303.38 and 253,555,489.72 is: 349,874,415.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,454,318.12 : 638,128,303.38 = 253,555,489.72 : x
  2. Step 2: Convert to fraction form
    462,454,318.12/638,128,303.38 = 253,555,489.72/x
  3. Step 3: Cross multiply
    462,454,318.12x = 638,128,303.38 × 253,555,489.72
  4. Step 4: Simplify right side
    462,454,318.12x = 161,800,934,467,708,640
  5. Step 5: Solve for x
    x = 161,800,934,467,708,640/462,454,318.12
  6. Step 6: Final answer
    x = 349,874,415.98

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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.