Home / 12,112,393.40-18,152,001.30-9,872,905.40

Finding the Fourth Proportional to 12,112,393.40, 18,152,001.30 and 9,872,905.40

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Solution

The fourth proportional to 12,112,393.40, 18,152,001.30 and 9,872,905.40 is: 14,795,836.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112,393.40 : 18,152,001.30 = 9,872,905.40 : x
  2. Step 2: Convert to fraction form
    12,112,393.40/18,152,001.30 = 9,872,905.40/x
  3. Step 3: Cross multiply
    12,112,393.40x = 18,152,001.30 × 9,872,905.40
  4. Step 4: Simplify right side
    12,112,393.40x = 179,212,991,655,577.03
  5. Step 5: Solve for x
    x = 179,212,991,655,577.03/12,112,393.40
  6. Step 6: Final answer
    x = 14,795,836.44

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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.