Home / 399,448,141.28-599,148,297.47-166,219,948.88

Finding the Fourth Proportional to 399,448,141.28, 599,148,297.47 and 166,219,948.88

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Solution

The fourth proportional to 399,448,141.28, 599,148,297.47 and 166,219,948.88 is: 249,319,971.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,448,141.28 : 599,148,297.47 = 166,219,948.88 : x
  2. Step 2: Convert to fraction form
    399,448,141.28/599,148,297.47 = 166,219,948.88/x
  3. Step 3: Cross multiply
    399,448,141.28x = 599,148,297.47 × 166,219,948.88
  4. Step 4: Simplify right side
    399,448,141.28x = 99,590,399,373,175,600
  5. Step 5: Solve for x
    x = 99,590,399,373,175,600/399,448,141.28
  6. Step 6: Final answer
    x = 249,319,971.94

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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.