Home / 142,015,475.20-213,023,212.80-61,236,443.20

Finding the Fourth Proportional to 142,015,475.20, 213,023,212.80 and 61,236,443.20

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Solution

The fourth proportional to 142,015,475.20, 213,023,212.80 and 61,236,443.20 is: 91,854,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,015,475.20 : 213,023,212.80 = 61,236,443.20 : x
  2. Step 2: Convert to fraction form
    142,015,475.20/213,023,212.80 = 61,236,443.20/x
  3. Step 3: Cross multiply
    142,015,475.20x = 213,023,212.80 × 61,236,443.20
  4. Step 4: Simplify right side
    142,015,475.20x = 13,044,783,870,908,714
  5. Step 5: Solve for x
    x = 13,044,783,870,908,714/142,015,475.20
  6. Step 6: Final answer
    x = 91,854,664.80

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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.