Home / 489,904,312.90-734,856,469.35-368,971,960.90

Finding the Fourth Proportional to 489,904,312.90, 734,856,469.35 and 368,971,960.90

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Solution

The fourth proportional to 489,904,312.90, 734,856,469.35 and 368,971,960.90 is: 553,457,941.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,904,312.90 : 734,856,469.35 = 368,971,960.90 : x
  2. Step 2: Convert to fraction form
    489,904,312.90/734,856,469.35 = 368,971,960.90/x
  3. Step 3: Cross multiply
    489,904,312.90x = 734,856,469.35 × 368,971,960.90
  4. Step 4: Simplify right side
    489,904,312.90x = 271,141,432,476,120,224
  5. Step 5: Solve for x
    x = 271,141,432,476,120,224/489,904,312.90
  6. Step 6: Final answer
    x = 553,457,941.35

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.