Home / 354,292,021.40-531,438,032.10-318,460,213.40

Finding the Fourth Proportional to 354,292,021.40, 531,438,032.10 and 318,460,213.40

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Solution

The fourth proportional to 354,292,021.40, 531,438,032.10 and 318,460,213.40 is: 477,690,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,292,021.40 : 531,438,032.10 = 318,460,213.40 : x
  2. Step 2: Convert to fraction form
    354,292,021.40/531,438,032.10 = 318,460,213.40/x
  3. Step 3: Cross multiply
    354,292,021.40x = 531,438,032.10 × 318,460,213.40
  4. Step 4: Simplify right side
    354,292,021.40x = 169,241,869,111,442,048
  5. Step 5: Solve for x
    x = 169,241,869,111,442,048/354,292,021.40
  6. Step 6: Final answer
    x = 477,690,320.10

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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.