Home / 21,026,444.10-31,476,680.55-12,502,392.90

Finding the Fourth Proportional to 21,026,444.10, 31,476,680.55 and 12,502,392.90

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Solution

The fourth proportional to 21,026,444.10, 31,476,680.55 and 12,502,392.90 is: 18,716,137.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026,444.10 : 31,476,680.55 = 12,502,392.90 : x
  2. Step 2: Convert to fraction form
    21,026,444.10/31,476,680.55 = 12,502,392.90/x
  3. Step 3: Cross multiply
    21,026,444.10x = 31,476,680.55 × 12,502,392.90
  4. Step 4: Simplify right side
    21,026,444.10x = 393,533,827,423,888.12
  5. Step 5: Solve for x
    x = 393,533,827,423,888.12/21,026,444.10
  6. Step 6: Final answer
    x = 18,716,137.90

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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.