Home / 72,181,803.60-108,272,705.40-69,630,886.80

Finding the Fourth Proportional to 72,181,803.60, 108,272,705.40 and 69,630,886.80

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Solution

The fourth proportional to 72,181,803.60, 108,272,705.40 and 69,630,886.80 is: 104,446,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,181,803.60 : 108,272,705.40 = 69,630,886.80 : x
  2. Step 2: Convert to fraction form
    72,181,803.60/108,272,705.40 = 69,630,886.80/x
  3. Step 3: Cross multiply
    72,181,803.60x = 108,272,705.40 × 69,630,886.80
  4. Step 4: Simplify right side
    72,181,803.60x = 7,539,124,493,237,149
  5. Step 5: Solve for x
    x = 7,539,124,493,237,149/72,181,803.60
  6. Step 6: Final answer
    x = 104,446,330.20

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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.