Home / 287,590,938.60-431,343,885.66-105,795,601.32

Finding the Fourth Proportional to 287,590,938.60, 431,343,885.66 and 105,795,601.32

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Solution

The fourth proportional to 287,590,938.60, 431,343,885.66 and 105,795,601.32 is: 158,677,759.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,590,938.60 : 431,343,885.66 = 105,795,601.32 : x
  2. Step 2: Convert to fraction form
    287,590,938.60/431,343,885.66 = 105,795,601.32/x
  3. Step 3: Cross multiply
    287,590,938.60x = 431,343,885.66 × 105,795,601.32
  4. Step 4: Simplify right side
    287,590,938.60x = 45,634,285,759,105,024
  5. Step 5: Solve for x
    x = 45,634,285,759,105,024/287,590,938.60
  6. Step 6: Final answer
    x = 158,677,759.39

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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.