Home / 286,372,069,279.86-429,631,068,112.29-84,921,163,410.18

Finding the Fourth Proportional to 286,372,069,279.86, 429,631,068,112.29 and 84,921,163,410.18

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Solution

The fourth proportional to 286,372,069,279.86, 429,631,068,112.29 and 84,921,163,410.18 is: 127,403,382,016.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,372,069,279.86 : 429,631,068,112.29 = 84,921,163,410.18 : x
  2. Step 2: Convert to fraction form
    286,372,069,279.86/429,631,068,112.29 = 84,921,163,410.18/x
  3. Step 3: Cross multiply
    286,372,069,279.86x = 429,631,068,112.29 × 84,921,163,410.18
  4. Step 4: Simplify right side
    286,372,069,279.86x = 36,484,770,141,253,947,883,520
  5. Step 5: Solve for x
    x = 36,484,770,141,253,947,883,520/286,372,069,279.86
  6. Step 6: Final answer
    x = 127,403,382,016.28

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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.