Home / 38,539,291.68-57,808,981.26-12,978,160.56

Finding the Fourth Proportional to 38,539,291.68, 57,808,981.26 and 12,978,160.56

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Solution

The fourth proportional to 38,539,291.68, 57,808,981.26 and 12,978,160.56 is: 19,467,255.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,539,291.68 : 57,808,981.26 = 12,978,160.56 : x
  2. Step 2: Convert to fraction form
    38,539,291.68/57,808,981.26 = 12,978,160.56/x
  3. Step 3: Cross multiply
    38,539,291.68x = 57,808,981.26 × 12,978,160.56
  4. Step 4: Simplify right side
    38,539,291.68x = 750,254,240,602,311.12
  5. Step 5: Solve for x
    x = 750,254,240,602,311.12/38,539,291.68
  6. Step 6: Final answer
    x = 19,467,255.57

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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.