Home / 87,480,014.80-131,220,022.20-49,142,779.60

Finding the Fourth Proportional to 87,480,014.80, 131,220,022.20 and 49,142,779.60

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Solution

The fourth proportional to 87,480,014.80, 131,220,022.20 and 49,142,779.60 is: 73,714,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,480,014.80 : 131,220,022.20 = 49,142,779.60 : x
  2. Step 2: Convert to fraction form
    87,480,014.80/131,220,022.20 = 49,142,779.60/x
  3. Step 3: Cross multiply
    87,480,014.80x = 131,220,022.20 × 49,142,779.60
  4. Step 4: Simplify right side
    87,480,014.80x = 6,448,516,630,081,707
  5. Step 5: Solve for x
    x = 6,448,516,630,081,707/87,480,014.80
  6. Step 6: Final answer
    x = 73,714,169.40

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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.