Home / 744,307,999.20-1,116,461,998.80-499,419,986.40

Finding the Fourth Proportional to 744,307,999.20, 1,116,461,998.80 and 499,419,986.40

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Solution

The fourth proportional to 744,307,999.20, 1,116,461,998.80 and 499,419,986.40 is: 749,129,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,307,999.20 : 1,116,461,998.80 = 499,419,986.40 : x
  2. Step 2: Convert to fraction form
    744,307,999.20/1,116,461,998.80 = 499,419,986.40/x
  3. Step 3: Cross multiply
    744,307,999.20x = 1,116,461,998.80 × 499,419,986.40
  4. Step 4: Simplify right side
    744,307,999.20x = 557,583,436,256,812,736
  5. Step 5: Solve for x
    x = 557,583,436,256,812,736/744,307,999.20
  6. Step 6: Final answer
    x = 749,129,979.60

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1.5x scale

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.