Home / 1,228,727,421.80-1,843,125,473.04-399,681,067.20

Finding the Fourth Proportional to 1,228,727,421.80, 1,843,125,473.04 and 399,681,067.20

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Solution

The fourth proportional to 1,228,727,421.80, 1,843,125,473.04 and 399,681,067.20 is: 599,532,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,727,421.80 : 1,843,125,473.04 = 399,681,067.20 : x
  2. Step 2: Convert to fraction form
    1,228,727,421.80/1,843,125,473.04 = 399,681,067.20/x
  3. Step 3: Cross multiply
    1,228,727,421.80x = 1,843,125,473.04 × 399,681,067.20
  4. Step 4: Simplify right side
    1,228,727,421.80x = 736,662,356,048,131,968
  5. Step 5: Solve for x
    x = 736,662,356,048,131,968/1,228,727,421.80
  6. Step 6: Final answer
    x = 599,532,771.05

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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.