Home / 826,685,999.40-1,240,028,999.10-463,133,116.20

Finding the Fourth Proportional to 826,685,999.40, 1,240,028,999.10 and 463,133,116.20

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Solution

The fourth proportional to 826,685,999.40, 1,240,028,999.10 and 463,133,116.20 is: 694,699,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,685,999.40 : 1,240,028,999.10 = 463,133,116.20 : x
  2. Step 2: Convert to fraction form
    826,685,999.40/1,240,028,999.10 = 463,133,116.20/x
  3. Step 3: Cross multiply
    826,685,999.40x = 1,240,028,999.10 × 463,133,116.20
  4. Step 4: Simplify right side
    826,685,999.40x = 574,298,494,531,549,952
  5. Step 5: Solve for x
    x = 574,298,494,531,549,952/826,685,999.40
  6. Step 6: Final answer
    x = 694,699,674.30

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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.