Home / 528,192,085.60-792,288,128.40-255,590,408.80

Finding the Fourth Proportional to 528,192,085.60, 792,288,128.40 and 255,590,408.80

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Solution

The fourth proportional to 528,192,085.60, 792,288,128.40 and 255,590,408.80 is: 383,385,613.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,192,085.60 : 792,288,128.40 = 255,590,408.80 : x
  2. Step 2: Convert to fraction form
    528,192,085.60/792,288,128.40 = 255,590,408.80/x
  3. Step 3: Cross multiply
    528,192,085.60x = 792,288,128.40 × 255,590,408.80
  4. Step 4: Simplify right side
    528,192,085.60x = 202,501,246,625,142,880
  5. Step 5: Solve for x
    x = 202,501,246,625,142,880/528,192,085.60
  6. Step 6: Final answer
    x = 383,385,613.20

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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.