Home / 13,710,976.38-18,920,876.85-7,516,036.44

Finding the Fourth Proportional to 13,710,976.38, 18,920,876.85 and 7,516,036.44

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Solution

The fourth proportional to 13,710,976.38, 18,920,876.85 and 7,516,036.44 is: 10,371,981.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710,976.38 : 18,920,876.85 = 7,516,036.44 : x
  2. Step 2: Convert to fraction form
    13,710,976.38/18,920,876.85 = 7,516,036.44/x
  3. Step 3: Cross multiply
    13,710,976.38x = 18,920,876.85 × 7,516,036.44
  4. Step 4: Simplify right side
    13,710,976.38x = 142,209,999,881,352.44
  5. Step 5: Solve for x
    x = 142,209,999,881,352.44/13,710,976.38
  6. Step 6: Final answer
    x = 10,371,981.98

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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.