Home / 509,914,279.20-766,005,159.60-490,640,685.60

Finding the Fourth Proportional to 509,914,279.20, 766,005,159.60 and 490,640,685.60

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Solution

The fourth proportional to 509,914,279.20, 766,005,159.60 and 490,640,685.60 is: 737,051,916.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,914,279.20 : 766,005,159.60 = 490,640,685.60 : x
  2. Step 2: Convert to fraction form
    509,914,279.20/766,005,159.60 = 490,640,685.60/x
  3. Step 3: Cross multiply
    509,914,279.20x = 766,005,159.60 × 490,640,685.60
  4. Step 4: Simplify right side
    509,914,279.20x = 375,833,296,679,281,472
  5. Step 5: Solve for x
    x = 375,833,296,679,281,472/509,914,279.20
  6. Step 6: Final answer
    x = 737,051,916.39

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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.