Home / 314,930,624.80-472,395,937.20-286,209,191.20

Finding the Fourth Proportional to 314,930,624.80, 472,395,937.20 and 286,209,191.20

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Solution

The fourth proportional to 314,930,624.80, 472,395,937.20 and 286,209,191.20 is: 429,313,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,930,624.80 : 472,395,937.20 = 286,209,191.20 : x
  2. Step 2: Convert to fraction form
    314,930,624.80/472,395,937.20 = 286,209,191.20/x
  3. Step 3: Cross multiply
    314,930,624.80x = 472,395,937.20 × 286,209,191.20
  4. Step 4: Simplify right side
    314,930,624.80x = 135,204,059,112,177,984
  5. Step 5: Solve for x
    x = 135,204,059,112,177,984/314,930,624.80
  6. Step 6: Final answer
    x = 429,313,786.80

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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.