Home / 20,112,330.70-30,168,496.05-12,050,173.90

Finding the Fourth Proportional to 20,112,330.70, 30,168,496.05 and 12,050,173.90

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Solution

The fourth proportional to 20,112,330.70, 30,168,496.05 and 12,050,173.90 is: 18,075,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112,330.70 : 30,168,496.05 = 12,050,173.90 : x
  2. Step 2: Convert to fraction form
    20,112,330.70/30,168,496.05 = 12,050,173.90/x
  3. Step 3: Cross multiply
    20,112,330.70x = 30,168,496.05 × 12,050,173.90
  4. Step 4: Simplify right side
    20,112,330.70x = 363,535,623,703,963.12
  5. Step 5: Solve for x
    x = 363,535,623,703,963.12/20,112,330.70
  6. Step 6: Final answer
    x = 18,075,260.85

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1.5x scale

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.