Home / 438,746,687.40-658,120,031.10-111,221,567.40

Finding the Fourth Proportional to 438,746,687.40, 658,120,031.10 and 111,221,567.40

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Solution

The fourth proportional to 438,746,687.40, 658,120,031.10 and 111,221,567.40 is: 166,832,351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,746,687.40 : 658,120,031.10 = 111,221,567.40 : x
  2. Step 2: Convert to fraction form
    438,746,687.40/658,120,031.10 = 111,221,567.40/x
  3. Step 3: Cross multiply
    438,746,687.40x = 658,120,031.10 × 111,221,567.40
  4. Step 4: Simplify right side
    438,746,687.40x = 73,197,141,396,278,752
  5. Step 5: Solve for x
    x = 73,197,141,396,278,752/438,746,687.40
  6. Step 6: Final answer
    x = 166,832,351.10

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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.