Home / 31,054,106.42-42,854,836.85-18,009,099.78

Finding the Fourth Proportional to 31,054,106.42, 42,854,836.85 and 18,009,099.78

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Solution

The fourth proportional to 31,054,106.42, 42,854,836.85 and 18,009,099.78 is: 24,852,656.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,054,106.42 : 42,854,836.85 = 18,009,099.78 : x
  2. Step 2: Convert to fraction form
    31,054,106.42/42,854,836.85 = 18,009,099.78/x
  3. Step 3: Cross multiply
    31,054,106.42x = 42,854,836.85 × 18,009,099.78
  4. Step 4: Simplify right side
    31,054,106.42x = 771,777,032,887,271
  5. Step 5: Solve for x
    x = 771,777,032,887,271/31,054,106.42
  6. Step 6: Final answer
    x = 24,852,656.28

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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.