Home / 994,691,747.47-1,372,678,879.04-542,579,567.40

Finding the Fourth Proportional to 994,691,747.47, 1,372,678,879.04 and 542,579,567.40

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Solution

The fourth proportional to 994,691,747.47, 1,372,678,879.04 and 542,579,567.40 is: 748,762,130.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,691,747.47 : 1,372,678,879.04 = 542,579,567.40 : x
  2. Step 2: Convert to fraction form
    994,691,747.47/1,372,678,879.04 = 542,579,567.40/x
  3. Step 3: Cross multiply
    994,691,747.47x = 1,372,678,879.04 × 542,579,567.40
  4. Step 4: Simplify right side
    994,691,747.47x = 744,787,512,372,475,648
  5. Step 5: Solve for x
    x = 744,787,512,372,475,648/994,691,747.47
  6. Step 6: Final answer
    x = 748,762,130.85

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1.5x scale

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.