Home / 13,381,820.64-18,462,844.08-7,579,680.48

Finding the Fourth Proportional to 13,381,820.64, 18,462,844.08 and 7,579,680.48

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Solution

The fourth proportional to 13,381,820.64, 18,462,844.08 and 7,579,680.48 is: 10,457,654.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381,820.64 : 18,462,844.08 = 7,579,680.48 : x
  2. Step 2: Convert to fraction form
    13,381,820.64/18,462,844.08 = 7,579,680.48/x
  3. Step 3: Cross multiply
    13,381,820.64x = 18,462,844.08 × 7,579,680.48
  4. Step 4: Simplify right side
    13,381,820.64x = 139,942,458,878,459.55
  5. Step 5: Solve for x
    x = 139,942,458,878,459.55/13,381,820.64
  6. Step 6: Final answer
    x = 10,457,654.65

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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.