Home / 205,605,989.29-308,378,647.51-60,000,455.51

Finding the Fourth Proportional to 205,605,989.29, 308,378,647.51 and 60,000,455.51

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Solution

The fourth proportional to 205,605,989.29, 308,378,647.51 and 60,000,455.51 is: 89,991,830.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,605,989.29 : 308,378,647.51 = 60,000,455.51 : x
  2. Step 2: Convert to fraction form
    205,605,989.29/308,378,647.51 = 60,000,455.51/x
  3. Step 3: Cross multiply
    205,605,989.29x = 308,378,647.51 × 60,000,455.51
  4. Step 4: Simplify right side
    205,605,989.29x = 18,502,859,320,157,728
  5. Step 5: Solve for x
    x = 18,502,859,320,157,728/205,605,989.29
  6. Step 6: Final answer
    x = 89,991,830.41

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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.