Home / 690,513,732.72-1,035,919,898.28-367,350,637.68

Finding the Fourth Proportional to 690,513,732.72, 1,035,919,898.28 and 367,350,637.68

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Solution

The fourth proportional to 690,513,732.72, 1,035,919,898.28 and 367,350,637.68 is: 551,105,383.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,513,732.72 : 1,035,919,898.28 = 367,350,637.68 : x
  2. Step 2: Convert to fraction form
    690,513,732.72/1,035,919,898.28 = 367,350,637.68/x
  3. Step 3: Cross multiply
    690,513,732.72x = 1,035,919,898.28 × 367,350,637.68
  4. Step 4: Simplify right side
    690,513,732.72x = 380,545,835,218,558,720
  5. Step 5: Solve for x
    x = 380,545,835,218,558,720/690,513,732.72
  6. Step 6: Final answer
    x = 551,105,383.12

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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.