Home / 221,805,503.60-306,071,053.45-122,684,117.85

Finding the Fourth Proportional to 221,805,503.60, 306,071,053.45 and 122,684,117.85

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Solution

The fourth proportional to 221,805,503.60, 306,071,053.45 and 122,684,117.85 is: 169,292,720.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,805,503.60 : 306,071,053.45 = 122,684,117.85 : x
  2. Step 2: Convert to fraction form
    221,805,503.60/306,071,053.45 = 122,684,117.85/x
  3. Step 3: Cross multiply
    221,805,503.60x = 306,071,053.45 × 122,684,117.85
  4. Step 4: Simplify right side
    221,805,503.60x = 37,550,057,191,626,736
  5. Step 5: Solve for x
    x = 37,550,057,191,626,736/221,805,503.60
  6. Step 6: Final answer
    x = 169,292,720.80

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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.