Home / 245,332,699.11-368,002,254.12-81,570,455.76

Finding the Fourth Proportional to 245,332,699.11, 368,002,254.12 and 81,570,455.76

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Solution

The fourth proportional to 245,332,699.11, 368,002,254.12 and 81,570,455.76 is: 122,356,749.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,332,699.11 : 368,002,254.12 = 81,570,455.76 : x
  2. Step 2: Convert to fraction form
    245,332,699.11/368,002,254.12 = 81,570,455.76/x
  3. Step 3: Cross multiply
    245,332,699.11x = 368,002,254.12 × 81,570,455.76
  4. Step 4: Simplify right side
    245,332,699.11x = 30,018,111,589,275,740
  5. Step 5: Solve for x
    x = 30,018,111,589,275,740/245,332,699.11
  6. Step 6: Final answer
    x = 122,356,749.42

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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.