Home / 72,731,563.81-109,094,688.48-21,612,254.02

Finding the Fourth Proportional to 72,731,563.81, 109,094,688.48 and 21,612,254.02

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Solution

The fourth proportional to 72,731,563.81, 109,094,688.48 and 21,612,254.02 is: 32,417,591.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,731,563.81 : 109,094,688.48 = 21,612,254.02 : x
  2. Step 2: Convert to fraction form
    72,731,563.81/109,094,688.48 = 21,612,254.02/x
  3. Step 3: Cross multiply
    72,731,563.81x = 109,094,688.48 × 21,612,254.02
  4. Step 4: Simplify right side
    72,731,563.81x = 2,357,782,119,662,527.50
  5. Step 5: Solve for x
    x = 2,357,782,119,662,527.50/72,731,563.81
  6. Step 6: Final answer
    x = 32,417,591.43

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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.