Home / 13,786,428.80-19,012,886.52-8,630,260.40

Finding the Fourth Proportional to 13,786,428.80, 19,012,886.52 and 8,630,260.40

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Solution

The fourth proportional to 13,786,428.80, 19,012,886.52 and 8,630,260.40 is: 11,902,006.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786,428.80 : 19,012,886.52 = 8,630,260.40 : x
  2. Step 2: Convert to fraction form
    13,786,428.80/19,012,886.52 = 8,630,260.40/x
  3. Step 3: Cross multiply
    13,786,428.80x = 19,012,886.52 × 8,630,260.40
  4. Step 4: Simplify right side
    13,786,428.80x = 164,086,161,623,249.81
  5. Step 5: Solve for x
    x = 164,086,161,623,249.81/13,786,428.80
  6. Step 6: Final answer
    x = 11,902,006.24

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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.