Home / 14,078,336.90-19,418,068.17-12,920,515.40

Finding the Fourth Proportional to 14,078,336.90, 19,418,068.17 and 12,920,515.40

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Solution

The fourth proportional to 14,078,336.90, 19,418,068.17 and 12,920,515.40 is: 17,821,099.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078,336.90 : 19,418,068.17 = 12,920,515.40 : x
  2. Step 2: Convert to fraction form
    14,078,336.90/19,418,068.17 = 12,920,515.40/x
  3. Step 3: Cross multiply
    14,078,336.90x = 19,418,068.17 × 12,920,515.40
  4. Step 4: Simplify right side
    14,078,336.90x = 250,891,448,877,280
  5. Step 5: Solve for x
    x = 250,891,448,877,280/14,078,336.90
  6. Step 6: Final answer
    x = 17,821,099.95

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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.