Home / 78,023,507.06-107,672,437.77-43,218,439.52

Finding the Fourth Proportional to 78,023,507.06, 107,672,437.77 and 43,218,439.52

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Solution

The fourth proportional to 78,023,507.06, 107,672,437.77 and 43,218,439.52 is: 59,641,445.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,023,507.06 : 107,672,437.77 = 43,218,439.52 : x
  2. Step 2: Convert to fraction form
    78,023,507.06/107,672,437.77 = 43,218,439.52/x
  3. Step 3: Cross multiply
    78,023,507.06x = 107,672,437.77 × 43,218,439.52
  4. Step 4: Simplify right side
    78,023,507.06x = 4,653,434,739,733,709
  5. Step 5: Solve for x
    x = 4,653,434,739,733,709/78,023,507.06
  6. Step 6: Final answer
    x = 59,641,445.44

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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.