Home / 659,340,282.80-989,010,424.20-199,349,447.60

Finding the Fourth Proportional to 659,340,282.80, 989,010,424.20 and 199,349,447.60

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Solution

The fourth proportional to 659,340,282.80, 989,010,424.20 and 199,349,447.60 is: 299,024,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,340,282.80 : 989,010,424.20 = 199,349,447.60 : x
  2. Step 2: Convert to fraction form
    659,340,282.80/989,010,424.20 = 199,349,447.60/x
  3. Step 3: Cross multiply
    659,340,282.80x = 989,010,424.20 × 199,349,447.60
  4. Step 4: Simplify right side
    659,340,282.80x = 197,158,681,734,911,680
  5. Step 5: Solve for x
    x = 197,158,681,734,911,680/659,340,282.80
  6. Step 6: Final answer
    x = 299,024,171.40

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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.