Home / 140,292,001.80-210,438,002.70-79,825,825.80

Finding the Fourth Proportional to 140,292,001.80, 210,438,002.70 and 79,825,825.80

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Solution

The fourth proportional to 140,292,001.80, 210,438,002.70 and 79,825,825.80 is: 119,738,738.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,292,001.80 : 210,438,002.70 = 79,825,825.80 : x
  2. Step 2: Convert to fraction form
    140,292,001.80/210,438,002.70 = 79,825,825.80/x
  3. Step 3: Cross multiply
    140,292,001.80x = 210,438,002.70 × 79,825,825.80
  4. Step 4: Simplify right side
    140,292,001.80x = 16,798,387,345,230,128
  5. Step 5: Solve for x
    x = 16,798,387,345,230,128/140,292,001.80
  6. Step 6: Final answer
    x = 119,738,738.70

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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.