Home / 812,021,752.43-1,120,560,012.26-440,735,812.19

Finding the Fourth Proportional to 812,021,752.43, 1,120,560,012.26 and 440,735,812.19

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Solution

The fourth proportional to 812,021,752.43, 1,120,560,012.26 and 440,735,812.19 is: 608,199,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,021,752.43 : 1,120,560,012.26 = 440,735,812.19 : x
  2. Step 2: Convert to fraction form
    812,021,752.43/1,120,560,012.26 = 440,735,812.19/x
  3. Step 3: Cross multiply
    812,021,752.43x = 1,120,560,012.26 × 440,735,812.19
  4. Step 4: Simplify right side
    812,021,752.43x = 493,870,927,103,241,024
  5. Step 5: Solve for x
    x = 493,870,927,103,241,024/812,021,752.43
  6. Step 6: Final answer
    x = 608,199,134.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.