Home / 208,049,639.20-287,301,494.64-155,747,874.40

Finding the Fourth Proportional to 208,049,639.20, 287,301,494.64 and 155,747,874.40

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Solution

The fourth proportional to 208,049,639.20, 287,301,494.64 and 155,747,874.40 is: 215,076,542.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,049,639.20 : 287,301,494.64 = 155,747,874.40 : x
  2. Step 2: Convert to fraction form
    208,049,639.20/287,301,494.64 = 155,747,874.40/x
  3. Step 3: Cross multiply
    208,049,639.20x = 287,301,494.64 × 155,747,874.40
  4. Step 4: Simplify right side
    208,049,639.20x = 44,746,597,102,122,992
  5. Step 5: Solve for x
    x = 44,746,597,102,122,992/208,049,639.20
  6. Step 6: Final answer
    x = 215,076,542.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.