Home / 653,213,281.80-980,267,820.30-289,968,328.20

Finding the Fourth Proportional to 653,213,281.80, 980,267,820.30 and 289,968,328.20

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Solution

The fourth proportional to 653,213,281.80, 980,267,820.30 and 289,968,328.20 is: 435,151,318.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,213,281.80 : 980,267,820.30 = 289,968,328.20 : x
  2. Step 2: Convert to fraction form
    653,213,281.80/980,267,820.30 = 289,968,328.20/x
  3. Step 3: Cross multiply
    653,213,281.80x = 980,267,820.30 × 289,968,328.20
  4. Step 4: Simplify right side
    653,213,281.80x = 284,246,621,040,648,992
  5. Step 5: Solve for x
    x = 284,246,621,040,648,992/653,213,281.80
  6. Step 6: Final answer
    x = 435,151,318.81

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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.