Home / 287,784,186.40-431,676,279.60-201,619,885.60

Finding the Fourth Proportional to 287,784,186.40, 431,676,279.60 and 201,619,885.60

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Solution

The fourth proportional to 287,784,186.40, 431,676,279.60 and 201,619,885.60 is: 302,429,828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,784,186.40 : 431,676,279.60 = 201,619,885.60 : x
  2. Step 2: Convert to fraction form
    287,784,186.40/431,676,279.60 = 201,619,885.60/x
  3. Step 3: Cross multiply
    287,784,186.40x = 431,676,279.60 × 201,619,885.60
  4. Step 4: Simplify right side
    287,784,186.40x = 87,034,522,109,185,616
  5. Step 5: Solve for x
    x = 87,034,522,109,185,616/287,784,186.40
  6. Step 6: Final answer
    x = 302,429,828.40

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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.