Home / 314,928,620.80-472,392,931.20-286,207,187.20

Finding the Fourth Proportional to 314,928,620.80, 472,392,931.20 and 286,207,187.20

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Solution

The fourth proportional to 314,928,620.80, 472,392,931.20 and 286,207,187.20 is: 429,310,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,620.80 : 472,392,931.20 = 286,207,187.20 : x
  2. Step 2: Convert to fraction form
    314,928,620.80/472,392,931.20 = 286,207,187.20/x
  3. Step 3: Cross multiply
    314,928,620.80x = 472,392,931.20 × 286,207,187.20
  4. Step 4: Simplify right side
    314,928,620.80x = 135,202,252,091,915,104
  5. Step 5: Solve for x
    x = 135,202,252,091,915,104/314,928,620.80
  6. Step 6: Final answer
    x = 429,310,780.80

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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.