Home / 215,724,879.77-297,729,503.76-121,658,371.15

Finding the Fourth Proportional to 215,724,879.77, 297,729,503.76 and 121,658,371.15

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Solution

The fourth proportional to 215,724,879.77, 297,729,503.76 and 121,658,371.15 is: 167,905,002.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,724,879.77 : 297,729,503.76 = 121,658,371.15 : x
  2. Step 2: Convert to fraction form
    215,724,879.77/297,729,503.76 = 121,658,371.15/x
  3. Step 3: Cross multiply
    215,724,879.77x = 297,729,503.76 × 121,658,371.15
  4. Step 4: Simplify right side
    215,724,879.77x = 36,221,286,470,668,624
  5. Step 5: Solve for x
    x = 36,221,286,470,668,624/215,724,879.77
  6. Step 6: Final answer
    x = 167,905,002.47

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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.