Home / 431,618,472.60-647,427,708.90-302,372,021.40

Finding the Fourth Proportional to 431,618,472.60, 647,427,708.90 and 302,372,021.40

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Solution

The fourth proportional to 431,618,472.60, 647,427,708.90 and 302,372,021.40 is: 453,558,032.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,618,472.60 : 647,427,708.90 = 302,372,021.40 : x
  2. Step 2: Convert to fraction form
    431,618,472.60/647,427,708.90 = 302,372,021.40/x
  3. Step 3: Cross multiply
    431,618,472.60x = 647,427,708.90 × 302,372,021.40
  4. Step 4: Simplify right side
    431,618,472.60x = 195,764,025,050,463,744
  5. Step 5: Solve for x
    x = 195,764,025,050,463,744/431,618,472.60
  6. Step 6: Final answer
    x = 453,558,032.10

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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.