Home / 217,778,889.60-326,668,334.40-108,939,772.80

Finding the Fourth Proportional to 217,778,889.60, 326,668,334.40 and 108,939,772.80

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Solution

The fourth proportional to 217,778,889.60, 326,668,334.40 and 108,939,772.80 is: 163,409,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,778,889.60 : 326,668,334.40 = 108,939,772.80 : x
  2. Step 2: Convert to fraction form
    217,778,889.60/326,668,334.40 = 108,939,772.80/x
  3. Step 3: Cross multiply
    217,778,889.60x = 326,668,334.40 × 108,939,772.80
  4. Step 4: Simplify right side
    217,778,889.60x = 35,587,174,130,490,420
  5. Step 5: Solve for x
    x = 35,587,174,130,490,420/217,778,889.60
  6. Step 6: Final answer
    x = 163,409,659.20

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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.