Home / 422,596,919.20-633,139,551.60-260,849,898.40

Finding the Fourth Proportional to 422,596,919.20, 633,139,551.60 and 260,849,898.40

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Solution

The fourth proportional to 422,596,919.20, 633,139,551.60 and 260,849,898.40 is: 390,808,309.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,596,919.20 : 633,139,551.60 = 260,849,898.40 : x
  2. Step 2: Convert to fraction form
    422,596,919.20/633,139,551.60 = 260,849,898.40/x
  3. Step 3: Cross multiply
    422,596,919.20x = 633,139,551.60 × 260,849,898.40
  4. Step 4: Simplify right side
    422,596,919.20x = 165,154,387,707,881,568
  5. Step 5: Solve for x
    x = 165,154,387,707,881,568/422,596,919.20
  6. Step 6: Final answer
    x = 390,808,309.77

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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.