Home / 354,617,999.40-531,926,999.10-191,359,324.20

Finding the Fourth Proportional to 354,617,999.40, 531,926,999.10 and 191,359,324.20

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Solution

The fourth proportional to 354,617,999.40, 531,926,999.10 and 191,359,324.20 is: 287,038,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,617,999.40 : 531,926,999.10 = 191,359,324.20 : x
  2. Step 2: Convert to fraction form
    354,617,999.40/531,926,999.10 = 191,359,324.20/x
  3. Step 3: Cross multiply
    354,617,999.40x = 531,926,999.10 × 191,359,324.20
  4. Step 4: Simplify right side
    354,617,999.40x = 101,789,191,071,510,000
  5. Step 5: Solve for x
    x = 101,789,191,071,510,000/354,617,999.40
  6. Step 6: Final answer
    x = 287,038,986.30

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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.