Home / 14,078,337.90-19,418,069.55-12,920,516.40

Finding the Fourth Proportional to 14,078,337.90, 19,418,069.55 and 12,920,516.40

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Solution

The fourth proportional to 14,078,337.90, 19,418,069.55 and 12,920,516.40 is: 17,821,101.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078,337.90 : 19,418,069.55 = 12,920,516.40 : x
  2. Step 2: Convert to fraction form
    14,078,337.90/19,418,069.55 = 12,920,516.40/x
  3. Step 3: Cross multiply
    14,078,337.90x = 19,418,069.55 × 12,920,516.40
  4. Step 4: Simplify right side
    14,078,337.90x = 250,891,486,077,115.62
  5. Step 5: Solve for x
    x = 250,891,486,077,115.62/14,078,337.90
  6. Step 6: Final answer
    x = 17,821,101.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.