Home / 388,099,498.85-581,221,189.94-223,839,263.91

Finding the Fourth Proportional to 388,099,498.85, 581,221,189.94 and 223,839,263.91

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Solution

The fourth proportional to 388,099,498.85, 581,221,189.94 and 223,839,263.91 is: 335,223,631.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,099,498.85 : 581,221,189.94 = 223,839,263.91 : x
  2. Step 2: Convert to fraction form
    388,099,498.85/581,221,189.94 = 223,839,263.91/x
  3. Step 3: Cross multiply
    388,099,498.85x = 581,221,189.94 × 223,839,263.91
  4. Step 4: Simplify right side
    388,099,498.85x = 130,100,123,323,944,688
  5. Step 5: Solve for x
    x = 130,100,123,323,944,688/388,099,498.85
  6. Step 6: Final answer
    x = 335,223,631.34

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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.