Home / 812,021,735.73-1,120,559,989.23-440,735,795.49

Finding the Fourth Proportional to 812,021,735.73, 1,120,559,989.23 and 440,735,795.49

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Solution

The fourth proportional to 812,021,735.73, 1,120,559,989.23 and 440,735,795.49 is: 608,199,111.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,021,735.73 : 1,120,559,989.23 = 440,735,795.49 : x
  2. Step 2: Convert to fraction form
    812,021,735.73/1,120,559,989.23 = 440,735,795.49/x
  3. Step 3: Cross multiply
    812,021,735.73x = 1,120,559,989.23 × 440,735,795.49
  4. Step 4: Simplify right side
    812,021,735.73x = 493,870,898,247,549,888
  5. Step 5: Solve for x
    x = 493,870,898,247,549,888/812,021,735.73
  6. Step 6: Final answer
    x = 608,199,111.57

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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.