Home / 243,605,478.66-365,262,288.55-77,537,245.89

Finding the Fourth Proportional to 243,605,478.66, 365,262,288.55 and 77,537,245.89

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Solution

The fourth proportional to 243,605,478.66, 365,262,288.55 and 77,537,245.89 is: 116,259,420.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,605,478.66 : 365,262,288.55 = 77,537,245.89 : x
  2. Step 2: Convert to fraction form
    243,605,478.66/365,262,288.55 = 77,537,245.89/x
  3. Step 3: Cross multiply
    243,605,478.66x = 365,262,288.55 × 77,537,245.89
  4. Step 4: Simplify right side
    243,605,478.66x = 28,321,431,883,257,904
  5. Step 5: Solve for x
    x = 28,321,431,883,257,904/243,605,478.66
  6. Step 6: Final answer
    x = 116,259,420.93

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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.