Home / 78,572,227.37-108,421,381.58-45,542,837.12

Finding the Fourth Proportional to 78,572,227.37, 108,421,381.58 and 45,542,837.12

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Solution

The fourth proportional to 78,572,227.37, 108,421,381.58 and 45,542,837.12 is: 62,844,308.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,572,227.37 : 108,421,381.58 = 45,542,837.12 : x
  2. Step 2: Convert to fraction form
    78,572,227.37/108,421,381.58 = 45,542,837.12/x
  3. Step 3: Cross multiply
    78,572,227.37x = 108,421,381.58 × 45,542,837.12
  4. Step 4: Simplify right side
    78,572,227.37x = 4,937,817,320,853,488
  5. Step 5: Solve for x
    x = 4,937,817,320,853,488/78,572,227.37
  6. Step 6: Final answer
    x = 62,844,308.82

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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.