Home / 509,914,312.20-766,005,209.10-490,640,718.60

Finding the Fourth Proportional to 509,914,312.20, 766,005,209.10 and 490,640,718.60

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Solution

The fourth proportional to 509,914,312.20, 766,005,209.10 and 490,640,718.60 is: 737,051,965.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,914,312.20 : 766,005,209.10 = 490,640,718.60 : x
  2. Step 2: Convert to fraction form
    509,914,312.20/766,005,209.10 = 490,640,718.60/x
  3. Step 3: Cross multiply
    509,914,312.20x = 766,005,209.10 × 490,640,718.60
  4. Step 4: Simplify right side
    509,914,312.20x = 375,833,346,244,167,296
  5. Step 5: Solve for x
    x = 375,833,346,244,167,296/509,914,312.20
  6. Step 6: Final answer
    x = 737,051,965.89

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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.