Home / 421,555,669.20-581,734,329.12-233,392,349.25

Finding the Fourth Proportional to 421,555,669.20, 581,734,329.12 and 233,392,349.25

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Solution

The fourth proportional to 421,555,669.20, 581,734,329.12 and 233,392,349.25 is: 322,074,524.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,555,669.20 : 581,734,329.12 = 233,392,349.25 : x
  2. Step 2: Convert to fraction form
    421,555,669.20/581,734,329.12 = 233,392,349.25/x
  3. Step 3: Cross multiply
    421,555,669.20x = 581,734,329.12 × 233,392,349.25
  4. Step 4: Simplify right side
    421,555,669.20x = 135,772,341,712,689,488
  5. Step 5: Solve for x
    x = 135,772,341,712,689,488/421,555,669.20
  6. Step 6: Final answer
    x = 322,074,524.51

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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.