Home / 15,742,721.40-23,624,579.70-7,218,670.20

Finding the Fourth Proportional to 15,742,721.40, 23,624,579.70 and 7,218,670.20

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Solution

The fourth proportional to 15,742,721.40, 23,624,579.70 and 7,218,670.20 is: 10,832,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,742,721.40 : 23,624,579.70 = 7,218,670.20 : x
  2. Step 2: Convert to fraction form
    15,742,721.40/23,624,579.70 = 7,218,670.20/x
  3. Step 3: Cross multiply
    15,742,721.40x = 23,624,579.70 × 7,218,670.20
  4. Step 4: Simplify right side
    15,742,721.40x = 170,538,049,467,914.94
  5. Step 5: Solve for x
    x = 170,538,049,467,914.94/15,742,721.40
  6. Step 6: Final answer
    x = 10,832,818.87

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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.