Home / 384,375,278.95-530,431,329.01-208,161,842.47

Finding the Fourth Proportional to 384,375,278.95, 530,431,329.01 and 208,161,842.47

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Solution

The fourth proportional to 384,375,278.95, 530,431,329.01 and 208,161,842.47 is: 287,259,792.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,375,278.95 : 530,431,329.01 = 208,161,842.47 : x
  2. Step 2: Convert to fraction form
    384,375,278.95/530,431,329.01 = 208,161,842.47/x
  3. Step 3: Cross multiply
    384,375,278.95x = 530,431,329.01 × 208,161,842.47
  4. Step 4: Simplify right side
    384,375,278.95x = 110,415,562,749,491,552
  5. Step 5: Solve for x
    x = 110,415,562,749,491,552/384,375,278.95
  6. Step 6: Final answer
    x = 287,259,792.18

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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.