Home / 21,174,219.10-31,761,328.65-16,385,345.20

Finding the Fourth Proportional to 21,174,219.10, 31,761,328.65 and 16,385,345.20

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Solution

The fourth proportional to 21,174,219.10, 31,761,328.65 and 16,385,345.20 is: 24,578,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174,219.10 : 31,761,328.65 = 16,385,345.20 : x
  2. Step 2: Convert to fraction form
    21,174,219.10/31,761,328.65 = 16,385,345.20/x
  3. Step 3: Cross multiply
    21,174,219.10x = 31,761,328.65 × 16,385,345.20
  4. Step 4: Simplify right side
    21,174,219.10x = 520,420,333,940,899.94
  5. Step 5: Solve for x
    x = 520,420,333,940,899.94/21,174,219.10
  6. Step 6: Final answer
    x = 24,578,017.80

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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.