Home / 108,388,937.12-149,578,958.04-61,346,009.84

Finding the Fourth Proportional to 108,388,937.12, 149,578,958.04 and 61,346,009.84

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Solution

The fourth proportional to 108,388,937.12, 149,578,958.04 and 61,346,009.84 is: 84,658,752.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,388,937.12 : 149,578,958.04 = 61,346,009.84 : x
  2. Step 2: Convert to fraction form
    108,388,937.12/149,578,958.04 = 61,346,009.84/x
  3. Step 3: Cross multiply
    108,388,937.12x = 149,578,958.04 × 61,346,009.84
  4. Step 4: Simplify right side
    108,388,937.12x = 9,176,072,231,778,788
  5. Step 5: Solve for x
    x = 9,176,072,231,778,788/108,388,937.12
  6. Step 6: Final answer
    x = 84,658,752.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.