Home / 508,812,135.60-763,218,203.40-347,568,999.60

Finding the Fourth Proportional to 508,812,135.60, 763,218,203.40 and 347,568,999.60

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Solution

The fourth proportional to 508,812,135.60, 763,218,203.40 and 347,568,999.60 is: 521,353,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,812,135.60 : 763,218,203.40 = 347,568,999.60 : x
  2. Step 2: Convert to fraction form
    508,812,135.60/763,218,203.40 = 347,568,999.60/x
  3. Step 3: Cross multiply
    508,812,135.60x = 763,218,203.40 × 347,568,999.60
  4. Step 4: Simplify right side
    508,812,135.60x = 265,270,987,432,247,328
  5. Step 5: Solve for x
    x = 265,270,987,432,247,328/508,812,135.60
  6. Step 6: Final answer
    x = 521,353,499.40

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Double scale
Find fourth proportional to 508,812,136.60, 763,218,204.90 and 347,569,000.60
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.