Home / 72,814,763.52-100,482,455.04-40,219,015.68

Finding the Fourth Proportional to 72,814,763.52, 100,482,455.04 and 40,219,015.68

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Solution

The fourth proportional to 72,814,763.52, 100,482,455.04 and 40,219,015.68 is: 55,501,181.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,814,763.52 : 100,482,455.04 = 40,219,015.68 : x
  2. Step 2: Convert to fraction form
    72,814,763.52/100,482,455.04 = 40,219,015.68/x
  3. Step 3: Cross multiply
    72,814,763.52x = 100,482,455.04 × 40,219,015.68
  4. Step 4: Simplify right side
    72,814,763.52x = 4,041,305,434,818,655.50
  5. Step 5: Solve for x
    x = 4,041,305,434,818,655.50/72,814,763.52
  6. Step 6: Final answer
    x = 55,501,181.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.