Home / 747,398,042.52-1,121,092,985.70-304,738,985.49

Finding the Fourth Proportional to 747,398,042.52, 1,121,092,985.70 and 304,738,985.49

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Solution

The fourth proportional to 747,398,042.52, 1,121,092,985.70 and 304,738,985.49 is: 457,106,815.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,398,042.52 : 1,121,092,985.70 = 304,738,985.49 : x
  2. Step 2: Convert to fraction form
    747,398,042.52/1,121,092,985.70 = 304,738,985.49/x
  3. Step 3: Cross multiply
    747,398,042.52x = 1,121,092,985.70 × 304,738,985.49
  4. Step 4: Simplify right side
    747,398,042.52x = 341,640,739,102,173,120
  5. Step 5: Solve for x
    x = 341,640,739,102,173,120/747,398,042.52
  6. Step 6: Final answer
    x = 457,106,815.47

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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.