Home / 910,938,776.16-1,367,042,473.69-320,776,551.78

Finding the Fourth Proportional to 910,938,776.16, 1,367,042,473.69 and 320,776,551.78

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Solution

The fourth proportional to 910,938,776.16, 1,367,042,473.69 and 320,776,551.78 is: 481,388,192.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,938,776.16 : 1,367,042,473.69 = 320,776,551.78 : x
  2. Step 2: Convert to fraction form
    910,938,776.16/1,367,042,473.69 = 320,776,551.78/x
  3. Step 3: Cross multiply
    910,938,776.16x = 1,367,042,473.69 × 320,776,551.78
  4. Step 4: Simplify right side
    910,938,776.16x = 438,515,170,853,156,544
  5. Step 5: Solve for x
    x = 438,515,170,853,156,544/910,938,776.16
  6. Step 6: Final answer
    x = 481,388,192.41

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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.