Home / 495,288,743.40-742,933,115.10-280,297,895.40

Finding the Fourth Proportional to 495,288,743.40, 742,933,115.10 and 280,297,895.40

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Solution

The fourth proportional to 495,288,743.40, 742,933,115.10 and 280,297,895.40 is: 420,446,843.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,288,743.40 : 742,933,115.10 = 280,297,895.40 : x
  2. Step 2: Convert to fraction form
    495,288,743.40/742,933,115.10 = 280,297,895.40/x
  3. Step 3: Cross multiply
    495,288,743.40x = 742,933,115.10 × 280,297,895.40
  4. Step 4: Simplify right side
    495,288,743.40x = 208,242,588,585,495,936
  5. Step 5: Solve for x
    x = 208,242,588,585,495,936/495,288,743.40
  6. Step 6: Final answer
    x = 420,446,843.10

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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.