Home / 521,086,069.63-719,111,269.66-282,941,291.41

Finding the Fourth Proportional to 521,086,069.63, 719,111,269.66 and 282,941,291.41

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Solution

The fourth proportional to 521,086,069.63, 719,111,269.66 and 282,941,291.41 is: 390,465,765.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,086,069.63 : 719,111,269.66 = 282,941,291.41 : x
  2. Step 2: Convert to fraction form
    521,086,069.63/719,111,269.66 = 282,941,291.41/x
  3. Step 3: Cross multiply
    521,086,069.63x = 719,111,269.66 × 282,941,291.41
  4. Step 4: Simplify right side
    521,086,069.63x = 203,466,271,307,144,864
  5. Step 5: Solve for x
    x = 203,466,271,307,144,864/521,086,069.63
  6. Step 6: Final answer
    x = 390,465,765.96

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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.