Home / 215,235,498.03-297,034,406.54-121,155,715.23

Finding the Fourth Proportional to 215,235,498.03, 297,034,406.54 and 121,155,715.23

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Solution

The fourth proportional to 215,235,498.03, 297,034,406.54 and 121,155,715.23 is: 167,200,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,235,498.03 : 297,034,406.54 = 121,155,715.23 : x
  2. Step 2: Convert to fraction form
    215,235,498.03/297,034,406.54 = 121,155,715.23/x
  3. Step 3: Cross multiply
    215,235,498.03x = 297,034,406.54 × 121,155,715.23
  4. Step 4: Simplify right side
    215,235,498.03x = 35,987,415,972,272,292
  5. Step 5: Solve for x
    x = 35,987,415,972,272,292/215,235,498.03
  6. Step 6: Final answer
    x = 167,200,189.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.