Home / 826,685,999.90-1,240,028,999.85-463,133,116.70

Finding the Fourth Proportional to 826,685,999.90, 1,240,028,999.85 and 463,133,116.70

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Solution

The fourth proportional to 826,685,999.90, 1,240,028,999.85 and 463,133,116.70 is: 694,699,675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,685,999.90 : 1,240,028,999.85 = 463,133,116.70 : x
  2. Step 2: Convert to fraction form
    826,685,999.90/1,240,028,999.85 = 463,133,116.70/x
  3. Step 3: Cross multiply
    826,685,999.90x = 1,240,028,999.85 × 463,133,116.70
  4. Step 4: Simplify right side
    826,685,999.90x = 574,298,495,498,914,304
  5. Step 5: Solve for x
    x = 574,298,495,498,914,304/826,685,999.90
  6. Step 6: Final answer
    x = 694,699,675.05

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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.