Home / 155,807,726-215,020,992.84-86,191,906.64

Finding the Fourth Proportional to 155,807,726, 215,020,992.84 and 86,191,906.64

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Solution

The fourth proportional to 155,807,726, 215,020,992.84 and 86,191,906.64 is: 118,948,333.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,807,726 : 215,020,992.84 = 86,191,906.64 : x
  2. Step 2: Convert to fraction form
    155,807,726/215,020,992.84 = 86,191,906.64/x
  3. Step 3: Cross multiply
    155,807,726x = 215,020,992.84 × 86,191,906.64
  4. Step 4: Simplify right side
    155,807,726x = 18,533,069,340,505,388
  5. Step 5: Solve for x
    x = 18,533,069,340,505,388/155,807,726
  6. Step 6: Final answer
    x = 118,948,333.41

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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.