Home / 13,710,976.14-18,920,876.50-7,516,036.20

Finding the Fourth Proportional to 13,710,976.14, 18,920,876.50 and 7,516,036.20

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Solution

The fourth proportional to 13,710,976.14, 18,920,876.50 and 7,516,036.20 is: 10,371,981.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710,976.14 : 18,920,876.50 = 7,516,036.20 : x
  2. Step 2: Convert to fraction form
    13,710,976.14/18,920,876.50 = 7,516,036.20/x
  3. Step 3: Cross multiply
    13,710,976.14x = 18,920,876.50 × 7,516,036.20
  4. Step 4: Simplify right side
    13,710,976.14x = 142,209,992,709,729.31
  5. Step 5: Solve for x
    x = 142,209,992,709,729.31/13,710,976.14
  6. Step 6: Final answer
    x = 10,371,981.63

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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.