Home / 472,392,938.80-708,589,408.20-165,716,052.40

Finding the Fourth Proportional to 472,392,938.80, 708,589,408.20 and 165,716,052.40

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Solution

The fourth proportional to 472,392,938.80, 708,589,408.20 and 165,716,052.40 is: 248,574,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,938.80 : 708,589,408.20 = 165,716,052.40 : x
  2. Step 2: Convert to fraction form
    472,392,938.80/708,589,408.20 = 165,716,052.40/x
  3. Step 3: Cross multiply
    472,392,938.80x = 708,589,408.20 × 165,716,052.40
  4. Step 4: Simplify right side
    472,392,938.80x = 117,424,639,499,356,208
  5. Step 5: Solve for x
    x = 117,424,639,499,356,208/472,392,938.80
  6. Step 6: Final answer
    x = 248,574,078.60

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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.