Home / 39,731,688.40-59,635,586.40-20,576,192.80

Finding the Fourth Proportional to 39,731,688.40, 59,635,586.40 and 20,576,192.80

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Solution

The fourth proportional to 39,731,688.40, 59,635,586.40 and 20,576,192.80 is: 30,883,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,731,688.40 : 59,635,586.40 = 20,576,192.80 : x
  2. Step 2: Convert to fraction form
    39,731,688.40/59,635,586.40 = 20,576,192.80/x
  3. Step 3: Cross multiply
    39,731,688.40x = 59,635,586.40 × 20,576,192.80
  4. Step 4: Simplify right side
    39,731,688.40x = 1,227,073,323,507,458
  5. Step 5: Solve for x
    x = 1,227,073,323,507,458/39,731,688.40
  6. Step 6: Final answer
    x = 30,883,996.45

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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.