Home / 358,312,685.82-537,148,964.25-139,912,217.34

Finding the Fourth Proportional to 358,312,685.82, 537,148,964.25 and 139,912,217.34

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Solution

The fourth proportional to 358,312,685.82, 537,148,964.25 and 139,912,217.34 is: 209,743,348.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,312,685.82 : 537,148,964.25 = 139,912,217.34 : x
  2. Step 2: Convert to fraction form
    358,312,685.82/537,148,964.25 = 139,912,217.34/x
  3. Step 3: Cross multiply
    358,312,685.82x = 537,148,964.25 × 139,912,217.34
  4. Step 4: Simplify right side
    358,312,685.82x = 75,153,702,630,101,888
  5. Step 5: Solve for x
    x = 75,153,702,630,101,888/358,312,685.82
  6. Step 6: Final answer
    x = 209,743,348.77

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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.