Home / 442,870,657.10-664,305,985.65-328,079,401.10

Finding the Fourth Proportional to 442,870,657.10, 664,305,985.65 and 328,079,401.10

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Solution

The fourth proportional to 442,870,657.10, 664,305,985.65 and 328,079,401.10 is: 492,119,101.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,870,657.10 : 664,305,985.65 = 328,079,401.10 : x
  2. Step 2: Convert to fraction form
    442,870,657.10/664,305,985.65 = 328,079,401.10/x
  3. Step 3: Cross multiply
    442,870,657.10x = 664,305,985.65 × 328,079,401.10
  4. Step 4: Simplify right side
    442,870,657.10x = 217,945,109,919,197,216
  5. Step 5: Solve for x
    x = 217,945,109,919,197,216/442,870,657.10
  6. Step 6: Final answer
    x = 492,119,101.65

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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.