Home / 217,224,338.40-326,214,421.20-115,187,666.40

Finding the Fourth Proportional to 217,224,338.40, 326,214,421.20 and 115,187,666.40

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Solution

The fourth proportional to 217,224,338.40, 326,214,421.20 and 115,187,666.40 is: 172,981,896.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,224,338.40 : 326,214,421.20 = 115,187,666.40 : x
  2. Step 2: Convert to fraction form
    217,224,338.40/326,214,421.20 = 115,187,666.40/x
  3. Step 3: Cross multiply
    217,224,338.40x = 326,214,421.20 × 115,187,666.40
  4. Step 4: Simplify right side
    217,224,338.40x = 37,575,877,924,054,688
  5. Step 5: Solve for x
    x = 37,575,877,924,054,688/217,224,338.40
  6. Step 6: Final answer
    x = 172,981,896.05

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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.