Home / 14,208,051.90-21,312,077.85-12,438,579.90

Finding the Fourth Proportional to 14,208,051.90, 21,312,077.85 and 12,438,579.90

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Solution

The fourth proportional to 14,208,051.90, 21,312,077.85 and 12,438,579.90 is: 18,657,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208,051.90 : 21,312,077.85 = 12,438,579.90 : x
  2. Step 2: Convert to fraction form
    14,208,051.90/21,312,077.85 = 12,438,579.90/x
  3. Step 3: Cross multiply
    14,208,051.90x = 21,312,077.85 × 12,438,579.90
  4. Step 4: Simplify right side
    14,208,051.90x = 265,091,983,172,245.25
  5. Step 5: Solve for x
    x = 265,091,983,172,245.25/14,208,051.90
  6. Step 6: Final answer
    x = 18,657,869.85

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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.