Home / 287,590,926.60-431,343,868.14-105,795,589.32

Finding the Fourth Proportional to 287,590,926.60, 431,343,868.14 and 105,795,589.32

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Solution

The fourth proportional to 287,590,926.60, 431,343,868.14 and 105,795,589.32 is: 158,677,741.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,590,926.60 : 431,343,868.14 = 105,795,589.32 : x
  2. Step 2: Convert to fraction form
    287,590,926.60/431,343,868.14 = 105,795,589.32/x
  3. Step 3: Cross multiply
    287,590,926.60x = 431,343,868.14 × 105,795,589.32
  4. Step 4: Simplify right side
    287,590,926.60x = 45,634,278,729,439,664
  5. Step 5: Solve for x
    x = 45,634,278,729,439,664/287,590,926.60
  6. Step 6: Final answer
    x = 158,677,741.57

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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.