Home / 315,335,368.20-432,002,237.82-303,545,669.16

Finding the Fourth Proportional to 315,335,368.20, 432,002,237.82 and 303,545,669.16

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Solution

The fourth proportional to 315,335,368.20, 432,002,237.82 and 303,545,669.16 is: 415,850,619.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,335,368.20 : 432,002,237.82 = 303,545,669.16 : x
  2. Step 2: Convert to fraction form
    315,335,368.20/432,002,237.82 = 303,545,669.16/x
  3. Step 3: Cross multiply
    315,335,368.20x = 432,002,237.82 × 303,545,669.16
  4. Step 4: Simplify right side
    315,335,368.20x = 131,132,408,357,689,376
  5. Step 5: Solve for x
    x = 131,132,408,357,689,376/315,335,368.20
  6. Step 6: Final answer
    x = 415,850,619.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.