Home / 21,011,440.40-31,487,636.10-16,700,863.40

Finding the Fourth Proportional to 21,011,440.40, 31,487,636.10 and 16,700,863.40

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Solution

The fourth proportional to 21,011,440.40, 31,487,636.10 and 16,700,863.40 is: 25,027,827.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,440.40 : 31,487,636.10 = 16,700,863.40 : x
  2. Step 2: Convert to fraction form
    21,011,440.40/31,487,636.10 = 16,700,863.40/x
  3. Step 3: Cross multiply
    21,011,440.40x = 31,487,636.10 × 16,700,863.40
  4. Step 4: Simplify right side
    21,011,440.40x = 525,870,709,295,008.75
  5. Step 5: Solve for x
    x = 525,870,709,295,008.75/21,011,440.40
  6. Step 6: Final answer
    x = 25,027,827.66

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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.