Home / 328,187,906.40-492,356,509.20-191,803,087.20

Finding the Fourth Proportional to 328,187,906.40, 492,356,509.20 and 191,803,087.20

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Solution

The fourth proportional to 328,187,906.40, 492,356,509.20 and 191,803,087.20 is: 287,748,258.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,187,906.40 : 492,356,509.20 = 191,803,087.20 : x
  2. Step 2: Convert to fraction form
    328,187,906.40/492,356,509.20 = 191,803,087.20/x
  3. Step 3: Cross multiply
    328,187,906.40x = 492,356,509.20 × 191,803,087.20
  4. Step 4: Simplify right side
    328,187,906.40x = 94,435,498,467,575,200
  5. Step 5: Solve for x
    x = 94,435,498,467,575,200/328,187,906.40
  6. Step 6: Final answer
    x = 287,748,258.32

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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.