Home / 255,635,999.60-383,453,999.40-153,347,385.20

Finding the Fourth Proportional to 255,635,999.60, 383,453,999.40 and 153,347,385.20

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Solution

The fourth proportional to 255,635,999.60, 383,453,999.40 and 153,347,385.20 is: 230,021,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,635,999.60 : 383,453,999.40 = 153,347,385.20 : x
  2. Step 2: Convert to fraction form
    255,635,999.60/383,453,999.40 = 153,347,385.20/x
  3. Step 3: Cross multiply
    255,635,999.60x = 383,453,999.40 × 153,347,385.20
  4. Step 4: Simplify right side
    255,635,999.60x = 58,801,668,152,472,360
  5. Step 5: Solve for x
    x = 58,801,668,152,472,360/255,635,999.60
  6. Step 6: Final answer
    x = 230,021,077.80

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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.