Home / 30,378,011.40-41,921,761.58-16,439,363.01

Finding the Fourth Proportional to 30,378,011.40, 41,921,761.58 and 16,439,363.01

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Solution

The fourth proportional to 30,378,011.40, 41,921,761.58 and 16,439,363.01 is: 22,686,378.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378,011.40 : 41,921,761.58 = 16,439,363.01 : x
  2. Step 2: Convert to fraction form
    30,378,011.40/41,921,761.58 = 16,439,363.01/x
  3. Step 3: Cross multiply
    30,378,011.40x = 41,921,761.58 × 16,439,363.01
  4. Step 4: Simplify right side
    30,378,011.40x = 689,167,056,550,094.38
  5. Step 5: Solve for x
    x = 689,167,056,550,094.38/30,378,011.40
  6. Step 6: Final answer
    x = 22,686,378.23

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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.