Home / 620,472,065.94-856,251,242.14-342,018,239.58

Finding the Fourth Proportional to 620,472,065.94, 856,251,242.14 and 342,018,239.58

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Solution

The fourth proportional to 620,472,065.94, 856,251,242.14 and 342,018,239.58 is: 471,985,055.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,472,065.94 : 856,251,242.14 = 342,018,239.58 : x
  2. Step 2: Convert to fraction form
    620,472,065.94/856,251,242.14 = 342,018,239.58/x
  3. Step 3: Cross multiply
    620,472,065.94x = 856,251,242.14 × 342,018,239.58
  4. Step 4: Simplify right side
    620,472,065.94x = 292,853,542,474,911,104
  5. Step 5: Solve for x
    x = 292,853,542,474,911,104/620,472,065.94
  6. Step 6: Final answer
    x = 471,985,055.49

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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.