Home / 19,820,048.70-29,721,215.70-7,685,479.20

Finding the Fourth Proportional to 19,820,048.70, 29,721,215.70 and 7,685,479.20

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Solution

The fourth proportional to 19,820,048.70, 29,721,215.70 and 7,685,479.20 is: 11,524,784.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820,048.70 : 29,721,215.70 = 7,685,479.20 : x
  2. Step 2: Convert to fraction form
    19,820,048.70/29,721,215.70 = 7,685,479.20/x
  3. Step 3: Cross multiply
    19,820,048.70x = 29,721,215.70 × 7,685,479.20
  4. Step 4: Simplify right side
    19,820,048.70x = 228,421,785,061,063.44
  5. Step 5: Solve for x
    x = 228,421,785,061,063.44/19,820,048.70
  6. Step 6: Final answer
    x = 11,524,784.25

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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.