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Finding the Fourth Proportional to 21,583,415.10, 32,321,978.55 and 10,210,577.70

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Solution

The fourth proportional to 21,583,415.10, 32,321,978.55 and 10,210,577.70 is: 15,290,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583,415.10 : 32,321,978.55 = 10,210,577.70 : x
  2. Step 2: Convert to fraction form
    21,583,415.10/32,321,978.55 = 10,210,577.70/x
  3. Step 3: Cross multiply
    21,583,415.10x = 32,321,978.55 × 10,210,577.70
  4. Step 4: Simplify right side
    21,583,415.10x = 330,026,073,402,508.31
  5. Step 5: Solve for x
    x = 330,026,073,402,508.31/21,583,415.10
  6. Step 6: Final answer
    x = 15,290,725.40

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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.