Home / 14,208,045.90-21,312,068.85-12,438,573.90

Finding the Fourth Proportional to 14,208,045.90, 21,312,068.85 and 12,438,573.90

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Solution

The fourth proportional to 14,208,045.90, 21,312,068.85 and 12,438,573.90 is: 18,657,860.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208,045.90 : 21,312,068.85 = 12,438,573.90 : x
  2. Step 2: Convert to fraction form
    14,208,045.90/21,312,068.85 = 12,438,573.90/x
  3. Step 3: Cross multiply
    14,208,045.90x = 21,312,068.85 × 12,438,573.90
  4. Step 4: Simplify right side
    14,208,045.90x = 265,091,743,352,613.03
  5. Step 5: Solve for x
    x = 265,091,743,352,613.03/14,208,045.90
  6. Step 6: Final answer
    x = 18,657,860.85

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Similar ratio
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1.5x scale

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.