Home / 878,300,048.61-1,212,046,893.23-476,412,791.36

Finding the Fourth Proportional to 878,300,048.61, 1,212,046,893.23 and 476,412,791.36

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Solution

The fourth proportional to 878,300,048.61, 1,212,046,893.23 and 476,412,791.36 is: 657,445,760.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,300,048.61 : 1,212,046,893.23 = 476,412,791.36 : x
  2. Step 2: Convert to fraction form
    878,300,048.61/1,212,046,893.23 = 476,412,791.36/x
  3. Step 3: Cross multiply
    878,300,048.61x = 1,212,046,893.23 × 476,412,791.36
  4. Step 4: Simplify right side
    878,300,048.61x = 577,434,643,654,477,824
  5. Step 5: Solve for x
    x = 577,434,643,654,477,824/878,300,048.61
  6. Step 6: Final answer
    x = 657,445,760.78

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1.5x scale

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.