Home / 15,761,385.68-21,742,441.63-12,824,482.17

Finding the Fourth Proportional to 15,761,385.68, 21,742,441.63 and 12,824,482.17

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Solution

The fourth proportional to 15,761,385.68, 21,742,441.63 and 12,824,482.17 is: 17,691,055.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,761,385.68 : 21,742,441.63 = 12,824,482.17 : x
  2. Step 2: Convert to fraction form
    15,761,385.68/21,742,441.63 = 12,824,482.17/x
  3. Step 3: Cross multiply
    15,761,385.68x = 21,742,441.63 × 12,824,482.17
  4. Step 4: Simplify right side
    15,761,385.68x = 278,835,555,016,200.72
  5. Step 5: Solve for x
    x = 278,835,555,016,200.72/15,761,385.68
  6. Step 6: Final answer
    x = 17,691,055.89

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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.