Home / 28,169,473.20-42,285,702.60-21,807,927.60

Finding the Fourth Proportional to 28,169,473.20, 42,285,702.60 and 21,807,927.60

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Solution

The fourth proportional to 28,169,473.20, 42,285,702.60 and 21,807,927.60 is: 32,736,272.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169,473.20 : 42,285,702.60 = 21,807,927.60 : x
  2. Step 2: Convert to fraction form
    28,169,473.20/42,285,702.60 = 21,807,927.60/x
  3. Step 3: Cross multiply
    28,169,473.20x = 42,285,702.60 × 21,807,927.60
  4. Step 4: Simplify right side
    28,169,473.20x = 922,163,540,815,931.88
  5. Step 5: Solve for x
    x = 922,163,540,815,931.88/28,169,473.20
  6. Step 6: Final answer
    x = 32,736,272.14

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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.