Home / 245,332,698.51-368,002,253.12-81,570,455.04

Finding the Fourth Proportional to 245,332,698.51, 368,002,253.12 and 81,570,455.04

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Solution

The fourth proportional to 245,332,698.51, 368,002,253.12 and 81,570,455.04 is: 122,356,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,332,698.51 : 368,002,253.12 = 81,570,455.04 : x
  2. Step 2: Convert to fraction form
    245,332,698.51/368,002,253.12 = 81,570,455.04/x
  3. Step 3: Cross multiply
    245,332,698.51x = 368,002,253.12 × 81,570,455.04
  4. Step 4: Simplify right side
    245,332,698.51x = 30,018,111,242,335,812
  5. Step 5: Solve for x
    x = 30,018,111,242,335,812/245,332,698.51
  6. Step 6: Final answer
    x = 122,356,748.30

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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.