Home / 287,590,937.60-431,343,884.16-105,795,600.32

Finding the Fourth Proportional to 287,590,937.60, 431,343,884.16 and 105,795,600.32

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Solution

The fourth proportional to 287,590,937.60, 431,343,884.16 and 105,795,600.32 is: 158,677,757.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,590,937.60 : 431,343,884.16 = 105,795,600.32 : x
  2. Step 2: Convert to fraction form
    287,590,937.60/431,343,884.16 = 105,795,600.32/x
  3. Step 3: Cross multiply
    287,590,937.60x = 431,343,884.16 × 105,795,600.32
  4. Step 4: Simplify right side
    287,590,937.60x = 45,634,285,169,067,736
  5. Step 5: Solve for x
    x = 45,634,285,169,067,736/287,590,937.60
  6. Step 6: Final answer
    x = 158,677,757.89

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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.