Home / 620,472,050.38-856,251,220.80-342,018,224.02

Finding the Fourth Proportional to 620,472,050.38, 856,251,220.80 and 342,018,224.02

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Solution

The fourth proportional to 620,472,050.38, 856,251,220.80 and 342,018,224.02 is: 471,985,034.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,472,050.38 : 856,251,220.80 = 342,018,224.02 : x
  2. Step 2: Convert to fraction form
    620,472,050.38/856,251,220.80 = 342,018,224.02/x
  3. Step 3: Cross multiply
    620,472,050.38x = 856,251,220.80 × 342,018,224.02
  4. Step 4: Simplify right side
    620,472,050.38x = 292,853,521,852,972,864
  5. Step 5: Solve for x
    x = 292,853,521,852,972,864/620,472,050.38
  6. Step 6: Final answer
    x = 471,985,034.09

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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.