Home / 130,095,916.15-194,883,692.30-78,251,900.17

Finding the Fourth Proportional to 130,095,916.15, 194,883,692.30 and 78,251,900.17

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Solution

The fourth proportional to 130,095,916.15, 194,883,692.30 and 78,251,900.17 is: 117,221,352.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,095,916.15 : 194,883,692.30 = 78,251,900.17 : x
  2. Step 2: Convert to fraction form
    130,095,916.15/194,883,692.30 = 78,251,900.17/x
  3. Step 3: Cross multiply
    130,095,916.15x = 194,883,692.30 × 78,251,900.17
  4. Step 4: Simplify right side
    130,095,916.15x = 15,250,019,233,254,920
  5. Step 5: Solve for x
    x = 15,250,019,233,254,920/130,095,916.15
  6. Step 6: Final answer
    x = 117,221,352.41

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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.