Home / 647,870,618.03-894,678,929.49-612,575,040.12

Finding the Fourth Proportional to 647,870,618.03, 894,678,929.49 and 612,575,040.12

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Solution

The fourth proportional to 647,870,618.03, 894,678,929.49 and 612,575,040.12 is: 845,937,392.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,870,618.03 : 894,678,929.49 = 612,575,040.12 : x
  2. Step 2: Convert to fraction form
    647,870,618.03/894,678,929.49 = 612,575,040.12/x
  3. Step 3: Cross multiply
    647,870,618.03x = 894,678,929.49 × 612,575,040.12
  4. Step 4: Simplify right side
    647,870,618.03x = 548,057,981,126,855,424
  5. Step 5: Solve for x
    x = 548,057,981,126,855,424/647,870,618.03
  6. Step 6: Final answer
    x = 845,937,392.25

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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.