Home / 442,868,735.10-664,303,102.65-440,317,818.30

Finding the Fourth Proportional to 442,868,735.10, 664,303,102.65 and 440,317,818.30

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Solution

The fourth proportional to 442,868,735.10, 664,303,102.65 and 440,317,818.30 is: 660,476,727.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,868,735.10 : 664,303,102.65 = 440,317,818.30 : x
  2. Step 2: Convert to fraction form
    442,868,735.10/664,303,102.65 = 440,317,818.30/x
  3. Step 3: Cross multiply
    442,868,735.10x = 664,303,102.65 × 440,317,818.30
  4. Step 4: Simplify right side
    442,868,735.10x = 292,504,492,848,768,960
  5. Step 5: Solve for x
    x = 292,504,492,848,768,960/442,868,735.10
  6. Step 6: Final answer
    x = 660,476,727.45

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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.