Home / 30,919,318.40-46,378,977.60-19,572,579.20

Finding the Fourth Proportional to 30,919,318.40, 46,378,977.60 and 19,572,579.20

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Solution

The fourth proportional to 30,919,318.40, 46,378,977.60 and 19,572,579.20 is: 29,358,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,919,318.40 : 46,378,977.60 = 19,572,579.20 : x
  2. Step 2: Convert to fraction form
    30,919,318.40/46,378,977.60 = 19,572,579.20/x
  3. Step 3: Cross multiply
    30,919,318.40x = 46,378,977.60 × 19,572,579.20
  4. Step 4: Simplify right side
    30,919,318.40x = 907,756,212,291,025.88
  5. Step 5: Solve for x
    x = 907,756,212,291,025.88/30,919,318.40
  6. Step 6: Final answer
    x = 29,358,868.80

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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.