Home / 142,032,009.20-213,048,013.80-96,682,377.20

Finding the Fourth Proportional to 142,032,009.20, 213,048,013.80 and 96,682,377.20

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Solution

The fourth proportional to 142,032,009.20, 213,048,013.80 and 96,682,377.20 is: 145,023,565.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,032,009.20 : 213,048,013.80 = 96,682,377.20 : x
  2. Step 2: Convert to fraction form
    142,032,009.20/213,048,013.80 = 96,682,377.20/x
  3. Step 3: Cross multiply
    142,032,009.20x = 213,048,013.80 × 96,682,377.20
  4. Step 4: Simplify right side
    142,032,009.20x = 20,597,988,431,922,408
  5. Step 5: Solve for x
    x = 20,597,988,431,922,408/142,032,009.20
  6. Step 6: Final answer
    x = 145,023,565.80

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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.