Home / 140,097,603.20-210,146,404.80-86,349,891.20

Finding the Fourth Proportional to 140,097,603.20, 210,146,404.80 and 86,349,891.20

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Solution

The fourth proportional to 140,097,603.20, 210,146,404.80 and 86,349,891.20 is: 129,524,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,097,603.20 : 210,146,404.80 = 86,349,891.20 : x
  2. Step 2: Convert to fraction form
    140,097,603.20/210,146,404.80 = 86,349,891.20/x
  3. Step 3: Cross multiply
    140,097,603.20x = 210,146,404.80 × 86,349,891.20
  4. Step 4: Simplify right side
    140,097,603.20x = 18,146,119,190,551,160
  5. Step 5: Solve for x
    x = 18,146,119,190,551,160/140,097,603.20
  6. Step 6: Final answer
    x = 129,524,836.80

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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.