Home / 76,107,761.60-105,027,914.40-42,617,307.20

Finding the Fourth Proportional to 76,107,761.60, 105,027,914.40 and 42,617,307.20

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Solution

The fourth proportional to 76,107,761.60, 105,027,914.40 and 42,617,307.20 is: 58,811,437.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,107,761.60 : 105,027,914.40 = 42,617,307.20 : x
  2. Step 2: Convert to fraction form
    76,107,761.60/105,027,914.40 = 42,617,307.20/x
  3. Step 3: Cross multiply
    76,107,761.60x = 105,027,914.40 × 42,617,307.20
  4. Step 4: Simplify right side
    76,107,761.60x = 4,476,006,892,560,104
  5. Step 5: Solve for x
    x = 4,476,006,892,560,104/76,107,761.60
  6. Step 6: Final answer
    x = 58,811,437.87

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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.