Home / 28,429,242.63-39,232,236.07-15,376,470.30

Finding the Fourth Proportional to 28,429,242.63, 39,232,236.07 and 15,376,470.30

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Solution

The fourth proportional to 28,429,242.63, 39,232,236.07 and 15,376,470.30 is: 21,219,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429,242.63 : 39,232,236.07 = 15,376,470.30 : x
  2. Step 2: Convert to fraction form
    28,429,242.63/39,232,236.07 = 15,376,470.30/x
  3. Step 3: Cross multiply
    28,429,242.63x = 39,232,236.07 × 15,376,470.30
  4. Step 4: Simplify right side
    28,429,242.63x = 603,253,312,732,943.75
  5. Step 5: Solve for x
    x = 603,253,312,732,943.75/28,429,242.63
  6. Step 6: Final answer
    x = 21,219,464.78

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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.