Home / 328,885,436.80-453,131,048.64-217,177,909.12

Finding the Fourth Proportional to 328,885,436.80, 453,131,048.64 and 217,177,909.12

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Solution

The fourth proportional to 328,885,436.80, 453,131,048.64 and 217,177,909.12 is: 299,222,898.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,885,436.80 : 453,131,048.64 = 217,177,909.12 : x
  2. Step 2: Convert to fraction form
    328,885,436.80/453,131,048.64 = 217,177,909.12/x
  3. Step 3: Cross multiply
    328,885,436.80x = 453,131,048.64 × 217,177,909.12
  4. Step 4: Simplify right side
    328,885,436.80x = 98,410,053,700,988,224
  5. Step 5: Solve for x
    x = 98,410,053,700,988,224/328,885,436.80
  6. Step 6: Final answer
    x = 299,222,898.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.