Home / 72,536,444.21-108,819,025.73-20,721,494.27

Finding the Fourth Proportional to 72,536,444.21, 108,819,025.73 and 20,721,494.27

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Solution

The fourth proportional to 72,536,444.21, 108,819,025.73 and 20,721,494.27 is: 31,086,343.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,536,444.21 : 108,819,025.73 = 20,721,494.27 : x
  2. Step 2: Convert to fraction form
    72,536,444.21/108,819,025.73 = 20,721,494.27/x
  3. Step 3: Cross multiply
    72,536,444.21x = 108,819,025.73 × 20,721,494.27
  4. Step 4: Simplify right side
    72,536,444.21x = 2,254,892,817,483,475
  5. Step 5: Solve for x
    x = 2,254,892,817,483,475/72,536,444.21
  6. Step 6: Final answer
    x = 31,086,343.45

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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.