Home / 509,362,515.82-702,446,031.63-330,555,214.79

Finding the Fourth Proportional to 509,362,515.82, 702,446,031.63 and 330,555,214.79

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Solution

The fourth proportional to 509,362,515.82, 702,446,031.63 and 330,555,214.79 is: 455,858,434.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,362,515.82 : 702,446,031.63 = 330,555,214.79 : x
  2. Step 2: Convert to fraction form
    509,362,515.82/702,446,031.63 = 330,555,214.79/x
  3. Step 3: Cross multiply
    509,362,515.82x = 702,446,031.63 × 330,555,214.79
  4. Step 4: Simplify right side
    509,362,515.82x = 232,197,198,866,914,496
  5. Step 5: Solve for x
    x = 232,197,198,866,914,496/509,362,515.82
  6. Step 6: Final answer
    x = 455,858,434.13

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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.