Home / 28,098,841.87-38,777,253.69-15,709,457.31

Finding the Fourth Proportional to 28,098,841.87, 38,777,253.69 and 15,709,457.31

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Solution

The fourth proportional to 28,098,841.87, 38,777,253.69 and 15,709,457.31 is: 21,679,527.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098,841.87 : 38,777,253.69 = 15,709,457.31 : x
  2. Step 2: Convert to fraction form
    28,098,841.87/38,777,253.69 = 15,709,457.31/x
  3. Step 3: Cross multiply
    28,098,841.87x = 38,777,253.69 × 15,709,457.31
  4. Step 4: Simplify right side
    28,098,841.87x = 609,169,611,442,095
  5. Step 5: Solve for x
    x = 609,169,611,442,095/28,098,841.87
  6. Step 6: Final answer
    x = 21,679,527.37

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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.