Home / 18,911,309.10-28,366,963.65-16,679,256.90

Finding the Fourth Proportional to 18,911,309.10, 28,366,963.65 and 16,679,256.90

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Solution

The fourth proportional to 18,911,309.10, 28,366,963.65 and 16,679,256.90 is: 25,018,885.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911,309.10 : 28,366,963.65 = 16,679,256.90 : x
  2. Step 2: Convert to fraction form
    18,911,309.10/28,366,963.65 = 16,679,256.90/x
  3. Step 3: Cross multiply
    18,911,309.10x = 28,366,963.65 × 16,679,256.90
  4. Step 4: Simplify right side
    18,911,309.10x = 473,139,874,191,311.69
  5. Step 5: Solve for x
    x = 473,139,874,191,311.69/18,911,309.10
  6. Step 6: Final answer
    x = 25,018,885.35

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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.