Home / 70,008,756.17-105,013,134.26-18,890,692.97

Finding the Fourth Proportional to 70,008,756.17, 105,013,134.26 and 18,890,692.97

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Solution

The fourth proportional to 70,008,756.17, 105,013,134.26 and 18,890,692.97 is: 28,336,039.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,008,756.17 : 105,013,134.26 = 18,890,692.97 : x
  2. Step 2: Convert to fraction form
    70,008,756.17/105,013,134.26 = 18,890,692.97/x
  3. Step 3: Cross multiply
    70,008,756.17x = 105,013,134.26 × 18,890,692.97
  4. Step 4: Simplify right side
    70,008,756.17x = 1,983,770,877,028,594.50
  5. Step 5: Solve for x
    x = 1,983,770,877,028,594.50/70,008,756.17
  6. Step 6: Final answer
    x = 28,336,039.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.