Home / 28,098,842.37-38,777,254.38-15,709,457.81

Finding the Fourth Proportional to 28,098,842.37, 38,777,254.38 and 15,709,457.81

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Solution

The fourth proportional to 28,098,842.37, 38,777,254.38 and 15,709,457.81 is: 21,679,528.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098,842.37 : 38,777,254.38 = 15,709,457.81 : x
  2. Step 2: Convert to fraction form
    28,098,842.37/38,777,254.38 = 15,709,457.81/x
  3. Step 3: Cross multiply
    28,098,842.37x = 38,777,254.38 × 15,709,457.81
  4. Step 4: Simplify right side
    28,098,842.37x = 609,169,641,476,361.50
  5. Step 5: Solve for x
    x = 609,169,641,476,361.50/28,098,842.37
  6. Step 6: Final answer
    x = 21,679,528.06

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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.