Home / 315,043,907.70-472,565,861.55-272,576,579.70

Finding the Fourth Proportional to 315,043,907.70, 472,565,861.55 and 272,576,579.70

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Solution

The fourth proportional to 315,043,907.70, 472,565,861.55 and 272,576,579.70 is: 408,864,869.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,043,907.70 : 472,565,861.55 = 272,576,579.70 : x
  2. Step 2: Convert to fraction form
    315,043,907.70/472,565,861.55 = 272,576,579.70/x
  3. Step 3: Cross multiply
    315,043,907.70x = 472,565,861.55 × 272,576,579.70
  4. Step 4: Simplify right side
    315,043,907.70x = 128,810,386,224,282,736
  5. Step 5: Solve for x
    x = 128,810,386,224,282,736/315,043,907.70
  6. Step 6: Final answer
    x = 408,864,869.55

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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.