Home / 28,731,039.34-39,649,677.66-15,679,140.67

Finding the Fourth Proportional to 28,731,039.34, 39,649,677.66 and 15,679,140.67

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Solution

The fourth proportional to 28,731,039.34, 39,649,677.66 and 15,679,140.67 is: 21,637,674.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731,039.34 : 39,649,677.66 = 15,679,140.67 : x
  2. Step 2: Convert to fraction form
    28,731,039.34/39,649,677.66 = 15,679,140.67/x
  3. Step 3: Cross multiply
    28,731,039.34x = 39,649,677.66 × 15,679,140.67
  4. Step 4: Simplify right side
    28,731,039.34x = 621,672,873,551,296.38
  5. Step 5: Solve for x
    x = 621,672,873,551,296.38/28,731,039.34
  6. Step 6: Final answer
    x = 21,637,674.37

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Why These Related Problems?

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