Home / 328,228,889.40-492,343,334.10-191,844,070.20

Finding the Fourth Proportional to 328,228,889.40, 492,343,334.10 and 191,844,070.20

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Solution

The fourth proportional to 328,228,889.40, 492,343,334.10 and 191,844,070.20 is: 287,766,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,228,889.40 : 492,343,334.10 = 191,844,070.20 : x
  2. Step 2: Convert to fraction form
    328,228,889.40/492,343,334.10 = 191,844,070.20/x
  3. Step 3: Cross multiply
    328,228,889.40x = 492,343,334.10 × 191,844,070.20
  4. Step 4: Simplify right side
    328,228,889.40x = 94,453,149,149,582,448
  5. Step 5: Solve for x
    x = 94,453,149,149,582,448/328,228,889.40
  6. Step 6: Final answer
    x = 287,766,105.30

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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.