Home / 983,172,001.20-1,474,758,001.80-400,588,662.30

Finding the Fourth Proportional to 983,172,001.20, 1,474,758,001.80 and 400,588,662.30

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Solution

The fourth proportional to 983,172,001.20, 1,474,758,001.80 and 400,588,662.30 is: 600,882,993.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,172,001.20 : 1,474,758,001.80 = 400,588,662.30 : x
  2. Step 2: Convert to fraction form
    983,172,001.20/1,474,758,001.80 = 400,588,662.30/x
  3. Step 3: Cross multiply
    983,172,001.20x = 1,474,758,001.80 × 400,588,662.30
  4. Step 4: Simplify right side
    983,172,001.20x = 590,771,335,157,282,944
  5. Step 5: Solve for x
    x = 590,771,335,157,282,944/983,172,001.20
  6. Step 6: Final answer
    x = 600,882,993.45

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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.