Home / 287,668,895.43-397,091,032.20-188,556,030

Finding the Fourth Proportional to 287,668,895.43, 397,091,032.20 and 188,556,030

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Solution

The fourth proportional to 287,668,895.43, 397,091,032.20 and 188,556,030 is: 260,278,082.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,668,895.43 : 397,091,032.20 = 188,556,030 : x
  2. Step 2: Convert to fraction form
    287,668,895.43/397,091,032.20 = 188,556,030/x
  3. Step 3: Cross multiply
    287,668,895.43x = 397,091,032.20 × 188,556,030
  4. Step 4: Simplify right side
    287,668,895.43x = 74,873,908,580,234,160
  5. Step 5: Solve for x
    x = 74,873,908,580,234,160/287,668,895.43
  6. Step 6: Final answer
    x = 260,278,082.79

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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.