Home / 81,386,459.82-112,285,537.20-50,435,335.98

Finding the Fourth Proportional to 81,386,459.82, 112,285,537.20 and 50,435,335.98

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Solution

The fourth proportional to 81,386,459.82, 112,285,537.20 and 50,435,335.98 is: 69,583,549.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,386,459.82 : 112,285,537.20 = 50,435,335.98 : x
  2. Step 2: Convert to fraction form
    81,386,459.82/112,285,537.20 = 50,435,335.98/x
  3. Step 3: Cross multiply
    81,386,459.82x = 112,285,537.20 × 50,435,335.98
  4. Step 4: Simplify right side
    81,386,459.82x = 5,663,158,794,376,788
  5. Step 5: Solve for x
    x = 5,663,158,794,376,788/81,386,459.82
  6. Step 6: Final answer
    x = 69,583,549.98

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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.