Home / 686,686,228.56-947,633,743.08-373,427,249.76

Finding the Fourth Proportional to 686,686,228.56, 947,633,743.08 and 373,427,249.76

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Solution

The fourth proportional to 686,686,228.56, 947,633,743.08 and 373,427,249.76 is: 515,333,274.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,686,228.56 : 947,633,743.08 = 373,427,249.76 : x
  2. Step 2: Convert to fraction form
    686,686,228.56/947,633,743.08 = 373,427,249.76/x
  3. Step 3: Cross multiply
    686,686,228.56x = 947,633,743.08 × 373,427,249.76
  4. Step 4: Simplify right side
    686,686,228.56x = 353,872,262,458,138,816
  5. Step 5: Solve for x
    x = 353,872,262,458,138,816/686,686,228.56
  6. Step 6: Final answer
    x = 515,333,274.12

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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.