Home / 666,164,390.68-999,399,833.57-223,565,803.38

Finding the Fourth Proportional to 666,164,390.68, 999,399,833.57 and 223,565,803.38

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Solution

The fourth proportional to 666,164,390.68, 999,399,833.57 and 223,565,803.38 is: 335,400,135.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,164,390.68 : 999,399,833.57 = 223,565,803.38 : x
  2. Step 2: Convert to fraction form
    666,164,390.68/999,399,833.57 = 223,565,803.38/x
  3. Step 3: Cross multiply
    666,164,390.68x = 999,399,833.57 × 223,565,803.38
  4. Step 4: Simplify right side
    666,164,390.68x = 223,431,626,685,049,792
  5. Step 5: Solve for x
    x = 223,431,626,685,049,792/666,164,390.68
  6. Step 6: Final answer
    x = 335,400,135.18

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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.