Home / 811,807,918.48-1,120,294,927.61-440,529,949.86

Finding the Fourth Proportional to 811,807,918.48, 1,120,294,927.61 and 440,529,949.86

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Solution

The fourth proportional to 811,807,918.48, 1,120,294,927.61 and 440,529,949.86 is: 607,931,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,807,918.48 : 1,120,294,927.61 = 440,529,949.86 : x
  2. Step 2: Convert to fraction form
    811,807,918.48/1,120,294,927.61 = 440,529,949.86/x
  3. Step 3: Cross multiply
    811,807,918.48x = 1,120,294,927.61 × 440,529,949.86
  4. Step 4: Simplify right side
    811,807,918.48x = 493,523,468,288,445,568
  5. Step 5: Solve for x
    x = 493,523,468,288,445,568/811,807,918.48
  6. Step 6: Final answer
    x = 607,931,330.87

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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.