Home / 213,135,250.77-319,830,420.15-91,966,702.77

Finding the Fourth Proportional to 213,135,250.77, 319,830,420.15 and 91,966,702.77

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Solution

The fourth proportional to 213,135,250.77, 319,830,420.15 and 91,966,702.77 is: 138,005,088.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,135,250.77 : 319,830,420.15 = 91,966,702.77 : x
  2. Step 2: Convert to fraction form
    213,135,250.77/319,830,420.15 = 91,966,702.77/x
  3. Step 3: Cross multiply
    213,135,250.77x = 319,830,420.15 × 91,966,702.77
  4. Step 4: Simplify right side
    213,135,250.77x = 29,413,749,186,739,264
  5. Step 5: Solve for x
    x = 29,413,749,186,739,264/213,135,250.77
  6. Step 6: Final answer
    x = 138,005,088.70

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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.