Home / 28,890,999.60-43,342,914.60-9,721,215.60

Finding the Fourth Proportional to 28,890,999.60, 43,342,914.60 and 9,721,215.60

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Solution

The fourth proportional to 28,890,999.60, 43,342,914.60 and 9,721,215.60 is: 14,583,981.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890,999.60 : 43,342,914.60 = 9,721,215.60 : x
  2. Step 2: Convert to fraction form
    28,890,999.60/43,342,914.60 = 9,721,215.60/x
  3. Step 3: Cross multiply
    28,890,999.60x = 43,342,914.60 × 9,721,215.60
  4. Step 4: Simplify right side
    28,890,999.60x = 421,345,817,558,987.75
  5. Step 5: Solve for x
    x = 421,345,817,558,987.75/28,890,999.60
  6. Step 6: Final answer
    x = 14,583,981.98

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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.