Home / 919,399,145.18-1,268,797,614.90-501,738,332.72

Finding the Fourth Proportional to 919,399,145.18, 1,268,797,614.90 and 501,738,332.72

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Solution

The fourth proportional to 919,399,145.18, 1,268,797,614.90 and 501,738,332.72 is: 692,413,521.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,399,145.18 : 1,268,797,614.90 = 501,738,332.72 : x
  2. Step 2: Convert to fraction form
    919,399,145.18/1,268,797,614.90 = 501,738,332.72/x
  3. Step 3: Cross multiply
    919,399,145.18x = 1,268,797,614.90 × 501,738,332.72
  4. Step 4: Simplify right side
    919,399,145.18x = 636,604,399,859,038,720
  5. Step 5: Solve for x
    x = 636,604,399,859,038,720/919,399,145.18
  6. Step 6: Final answer
    x = 692,413,521.59

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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.