Home / 72,900,176.70-109,366,011.45-21,787,362.30

Finding the Fourth Proportional to 72,900,176.70, 109,366,011.45 and 21,787,362.30

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Solution

The fourth proportional to 72,900,176.70, 109,366,011.45 and 21,787,362.30 is: 32,685,749.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,900,176.70 : 109,366,011.45 = 21,787,362.30 : x
  2. Step 2: Convert to fraction form
    72,900,176.70/109,366,011.45 = 21,787,362.30/x
  3. Step 3: Cross multiply
    72,900,176.70x = 109,366,011.45 × 21,787,362.30
  4. Step 4: Simplify right side
    72,900,176.70x = 2,382,796,914,767,098.50
  5. Step 5: Solve for x
    x = 2,382,796,914,767,098.50/72,900,176.70
  6. Step 6: Final answer
    x = 32,685,749.51

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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.