Home / 78,023,501.35-107,672,429.90-43,218,433.82

Finding the Fourth Proportional to 78,023,501.35, 107,672,429.90 and 43,218,433.82

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Solution

The fourth proportional to 78,023,501.35, 107,672,429.90 and 43,218,433.82 is: 59,641,437.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,023,501.35 : 107,672,429.90 = 43,218,433.82 : x
  2. Step 2: Convert to fraction form
    78,023,501.35/107,672,429.90 = 43,218,433.82/x
  3. Step 3: Cross multiply
    78,023,501.35x = 107,672,429.90 × 43,218,433.82
  4. Step 4: Simplify right side
    78,023,501.35x = 4,653,433,785,441,423
  5. Step 5: Solve for x
    x = 4,653,433,785,441,423/78,023,501.35
  6. Step 6: Final answer
    x = 59,641,437.58

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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.