Home / 630,390,537.90-945,585,806.85-221,446,688.40

Finding the Fourth Proportional to 630,390,537.90, 945,585,806.85 and 221,446,688.40

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Solution

The fourth proportional to 630,390,537.90, 945,585,806.85 and 221,446,688.40 is: 332,170,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,390,537.90 : 945,585,806.85 = 221,446,688.40 : x
  2. Step 2: Convert to fraction form
    630,390,537.90/945,585,806.85 = 221,446,688.40/x
  3. Step 3: Cross multiply
    630,390,537.90x = 945,585,806.85 × 221,446,688.40
  4. Step 4: Simplify right side
    630,390,537.90x = 209,396,845,524,974,560
  5. Step 5: Solve for x
    x = 209,396,845,524,974,560/630,390,537.90
  6. Step 6: Final answer
    x = 332,170,032.60

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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.