Home / 112,762,996.40-169,127,905.80-31,992,129.20

Finding the Fourth Proportional to 112,762,996.40, 169,127,905.80 and 31,992,129.20

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Solution

The fourth proportional to 112,762,996.40, 169,127,905.80 and 31,992,129.20 is: 47,983,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,762,996.40 : 169,127,905.80 = 31,992,129.20 : x
  2. Step 2: Convert to fraction form
    112,762,996.40/169,127,905.80 = 31,992,129.20/x
  3. Step 3: Cross multiply
    112,762,996.40x = 169,127,905.80 × 31,992,129.20
  4. Step 4: Simplify right side
    112,762,996.40x = 5,410,761,813,679,030
  5. Step 5: Solve for x
    x = 5,410,761,813,679,030/112,762,996.40
  6. Step 6: Final answer
    x = 47,983,487.37

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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.