Home / 401,473,901.20-602,210,851.80-217,807,891.60

Finding the Fourth Proportional to 401,473,901.20, 602,210,851.80 and 217,807,891.60

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Solution

The fourth proportional to 401,473,901.20, 602,210,851.80 and 217,807,891.60 is: 326,711,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,473,901.20 : 602,210,851.80 = 217,807,891.60 : x
  2. Step 2: Convert to fraction form
    401,473,901.20/602,210,851.80 = 217,807,891.60/x
  3. Step 3: Cross multiply
    401,473,901.20x = 602,210,851.80 × 217,807,891.60
  4. Step 4: Simplify right side
    401,473,901.20x = 131,166,275,929,198,048
  5. Step 5: Solve for x
    x = 131,166,275,929,198,048/401,473,901.20
  6. Step 6: Final answer
    x = 326,711,837.40

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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.