Home / 521,086,067.55-719,111,266.80-282,941,289.34

Finding the Fourth Proportional to 521,086,067.55, 719,111,266.80 and 282,941,289.34

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Solution

The fourth proportional to 521,086,067.55, 719,111,266.80 and 282,941,289.34 is: 390,465,763.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,086,067.55 : 719,111,266.80 = 282,941,289.34 : x
  2. Step 2: Convert to fraction form
    521,086,067.55/719,111,266.80 = 282,941,289.34/x
  3. Step 3: Cross multiply
    521,086,067.55x = 719,111,266.80 × 282,941,289.34
  4. Step 4: Simplify right side
    521,086,067.55x = 203,466,269,007,695,776
  5. Step 5: Solve for x
    x = 203,466,269,007,695,776/521,086,067.55
  6. Step 6: Final answer
    x = 390,465,763.10

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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.