Home / 257,816,123.80-386,157,315.30-223,803,899.80

Finding the Fourth Proportional to 257,816,123.80, 386,157,315.30 and 223,803,899.80

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Solution

The fourth proportional to 257,816,123.80, 386,157,315.30 and 223,803,899.80 is: 335,213,763.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,816,123.80 : 386,157,315.30 = 223,803,899.80 : x
  2. Step 2: Convert to fraction form
    257,816,123.80/386,157,315.30 = 223,803,899.80/x
  3. Step 3: Cross multiply
    257,816,123.80x = 386,157,315.30 × 223,803,899.80
  4. Step 4: Simplify right side
    257,816,123.80x = 86,423,513,100,438,208
  5. Step 5: Solve for x
    x = 86,423,513,100,438,208/257,816,123.80
  6. Step 6: Final answer
    x = 335,213,763.31

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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.