Home / 647,870,617.02-894,678,928.11-612,575,039.12

Finding the Fourth Proportional to 647,870,617.02, 894,678,928.11 and 612,575,039.12

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Solution

The fourth proportional to 647,870,617.02, 894,678,928.11 and 612,575,039.12 is: 845,937,390.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,870,617.02 : 894,678,928.11 = 612,575,039.12 : x
  2. Step 2: Convert to fraction form
    647,870,617.02/894,678,928.11 = 612,575,039.12/x
  3. Step 3: Cross multiply
    647,870,617.02x = 894,678,928.11 × 612,575,039.12
  4. Step 4: Simplify right side
    647,870,617.02x = 548,057,979,383,760,064
  5. Step 5: Solve for x
    x = 548,057,979,383,760,064/647,870,617.02
  6. Step 6: Final answer
    x = 845,937,390.87

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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.