Home / 734,225,405.80-1,013,200,020.42-399,690,973.48

Finding the Fourth Proportional to 734,225,405.80, 1,013,200,020.42 and 399,690,973.48

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Solution

The fourth proportional to 734,225,405.80, 1,013,200,020.42 and 399,690,973.48 is: 551,556,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,225,405.80 : 1,013,200,020.42 = 399,690,973.48 : x
  2. Step 2: Convert to fraction form
    734,225,405.80/1,013,200,020.42 = 399,690,973.48/x
  3. Step 3: Cross multiply
    734,225,405.80x = 1,013,200,020.42 × 399,690,973.48
  4. Step 4: Simplify right side
    734,225,405.80x = 404,966,902,491,625,664
  5. Step 5: Solve for x
    x = 404,966,902,491,625,664/734,225,405.80
  6. Step 6: Final answer
    x = 551,556,646.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.