Home / 630,390,501.40-945,585,752.10-221,446,651.90

Finding the Fourth Proportional to 630,390,501.40, 945,585,752.10 and 221,446,651.90

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Solution

The fourth proportional to 630,390,501.40, 945,585,752.10 and 221,446,651.90 is: 332,169,977.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,390,501.40 : 945,585,752.10 = 221,446,651.90 : x
  2. Step 2: Convert to fraction form
    630,390,501.40/945,585,752.10 = 221,446,651.90/x
  3. Step 3: Cross multiply
    630,390,501.40x = 945,585,752.10 × 221,446,651.90
  4. Step 4: Simplify right side
    630,390,501.40x = 209,396,798,886,888,416
  5. Step 5: Solve for x
    x = 209,396,798,886,888,416/630,390,501.40
  6. Step 6: Final answer
    x = 332,169,977.85

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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.