Home / 305,208,857.40-457,841,279.70-100,737,382.20

Finding the Fourth Proportional to 305,208,857.40, 457,841,279.70 and 100,737,382.20

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Solution

The fourth proportional to 305,208,857.40, 457,841,279.70 and 100,737,382.20 is: 151,115,312.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,208,857.40 : 457,841,279.70 = 100,737,382.20 : x
  2. Step 2: Convert to fraction form
    305,208,857.40/457,841,279.70 = 100,737,382.20/x
  3. Step 3: Cross multiply
    305,208,857.40x = 457,841,279.70 × 100,737,382.20
  4. Step 4: Simplify right side
    305,208,857.40x = 46,121,731,980,076,000
  5. Step 5: Solve for x
    x = 46,121,731,980,076,000/305,208,857.40
  6. Step 6: Final answer
    x = 151,115,312.88

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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.