Home / 21,870,015.20-32,805,022.80-21,492,101.60

Finding the Fourth Proportional to 21,870,015.20, 32,805,022.80 and 21,492,101.60

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Solution

The fourth proportional to 21,870,015.20, 32,805,022.80 and 21,492,101.60 is: 32,238,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,870,015.20 : 32,805,022.80 = 21,492,101.60 : x
  2. Step 2: Convert to fraction form
    21,870,015.20/32,805,022.80 = 21,492,101.60/x
  3. Step 3: Cross multiply
    21,870,015.20x = 32,805,022.80 × 21,492,101.60
  4. Step 4: Simplify right side
    21,870,015.20x = 705,048,883,007,916.50
  5. Step 5: Solve for x
    x = 705,048,883,007,916.50/21,870,015.20
  6. Step 6: Final answer
    x = 32,238,152.40

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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.