Home / 442,158,152.20-663,237,228.30-399,111,431.20

Finding the Fourth Proportional to 442,158,152.20, 663,237,228.30 and 399,111,431.20

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Solution

The fourth proportional to 442,158,152.20, 663,237,228.30 and 399,111,431.20 is: 598,667,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,158,152.20 : 663,237,228.30 = 399,111,431.20 : x
  2. Step 2: Convert to fraction form
    442,158,152.20/663,237,228.30 = 399,111,431.20/x
  3. Step 3: Cross multiply
    442,158,152.20x = 663,237,228.30 × 399,111,431.20
  4. Step 4: Simplify right side
    442,158,152.20x = 264,705,559,411,934,112
  5. Step 5: Solve for x
    x = 264,705,559,411,934,112/442,158,152.20
  6. Step 6: Final answer
    x = 598,667,146.80

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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.