Home / 217,819,931.40-326,729,897.10-168,502,206.60

Finding the Fourth Proportional to 217,819,931.40, 326,729,897.10 and 168,502,206.60

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Solution

The fourth proportional to 217,819,931.40, 326,729,897.10 and 168,502,206.60 is: 252,753,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,819,931.40 : 326,729,897.10 = 168,502,206.60 : x
  2. Step 2: Convert to fraction form
    217,819,931.40/326,729,897.10 = 168,502,206.60/x
  3. Step 3: Cross multiply
    217,819,931.40x = 326,729,897.10 × 168,502,206.60
  4. Step 4: Simplify right side
    217,819,931.40x = 55,054,708,623,540,944
  5. Step 5: Solve for x
    x = 55,054,708,623,540,944/217,819,931.40
  6. Step 6: Final answer
    x = 252,753,309.90

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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.