Home / 199,665,521.86-299,299,878.15-138,953,702.02

Finding the Fourth Proportional to 199,665,521.86, 299,299,878.15 and 138,953,702.02

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Solution

The fourth proportional to 199,665,521.86, 299,299,878.15 and 138,953,702.02 is: 208,292,476.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,665,521.86 : 299,299,878.15 = 138,953,702.02 : x
  2. Step 2: Convert to fraction form
    199,665,521.86/299,299,878.15 = 138,953,702.02/x
  3. Step 3: Cross multiply
    199,665,521.86x = 299,299,878.15 × 138,953,702.02
  4. Step 4: Simplify right side
    199,665,521.86x = 41,588,826,083,077,408
  5. Step 5: Solve for x
    x = 41,588,826,083,077,408/199,665,521.86
  6. Step 6: Final answer
    x = 208,292,476.82

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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.