Home / 221,805,509.36-306,071,061.38-122,684,123.60

Finding the Fourth Proportional to 221,805,509.36, 306,071,061.38 and 122,684,123.60

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Solution

The fourth proportional to 221,805,509.36, 306,071,061.38 and 122,684,123.60 is: 169,292,728.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,805,509.36 : 306,071,061.38 = 122,684,123.60 : x
  2. Step 2: Convert to fraction form
    221,805,509.36/306,071,061.38 = 122,684,123.60/x
  3. Step 3: Cross multiply
    221,805,509.36x = 306,071,061.38 × 122,684,123.60
  4. Step 4: Simplify right side
    221,805,509.36x = 37,550,059,924,113,688
  5. Step 5: Solve for x
    x = 37,550,059,924,113,688/221,805,509.36
  6. Step 6: Final answer
    x = 169,292,728.72

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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.