Home / 678,436,200.45-1,017,654,300.68-290,298,266.10

Finding the Fourth Proportional to 678,436,200.45, 1,017,654,300.68 and 290,298,266.10

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Solution

The fourth proportional to 678,436,200.45, 1,017,654,300.68 and 290,298,266.10 is: 435,447,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,436,200.45 : 1,017,654,300.68 = 290,298,266.10 : x
  2. Step 2: Convert to fraction form
    678,436,200.45/1,017,654,300.68 = 290,298,266.10/x
  3. Step 3: Cross multiply
    678,436,200.45x = 1,017,654,300.68 × 290,298,266.10
  4. Step 4: Simplify right side
    678,436,200.45x = 295,423,278,975,160,576
  5. Step 5: Solve for x
    x = 295,423,278,975,160,576/678,436,200.45
  6. Step 6: Final answer
    x = 435,447,399.15

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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.