Home / 390,973,165.80-586,790,423.10-161,107,218.60

Finding the Fourth Proportional to 390,973,165.80, 586,790,423.10 and 161,107,218.60

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Solution

The fourth proportional to 390,973,165.80, 586,790,423.10 and 161,107,218.60 is: 241,797,087.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,973,165.80 : 586,790,423.10 = 161,107,218.60 : x
  2. Step 2: Convert to fraction form
    390,973,165.80/586,790,423.10 = 161,107,218.60/x
  3. Step 3: Cross multiply
    390,973,165.80x = 586,790,423.10 × 161,107,218.60
  4. Step 4: Simplify right side
    390,973,165.80x = 94,536,172,966,758,192
  5. Step 5: Solve for x
    x = 94,536,172,966,758,192/390,973,165.80
  6. Step 6: Final answer
    x = 241,797,087.97

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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.