Home / 905,390,531,022.40-1,249,442,817,213.90-493,867,977,789.91

Finding the Fourth Proportional to 905,390,531,022.40, 1,249,442,817,213.90 and 493,867,977,789.91

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Solution

The fourth proportional to 905,390,531,022.40, 1,249,442,817,213.90 and 493,867,977,789.91 is: 681,539,928,195.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,390,531,022.40 : 1,249,442,817,213.90 = 493,867,977,789.91 : x
  2. Step 2: Convert to fraction form
    905,390,531,022.40/1,249,442,817,213.90 = 493,867,977,789.91/x
  3. Step 3: Cross multiply
    905,390,531,022.40x = 1,249,442,817,213.90 × 493,867,977,789.91
  4. Step 4: Simplify right side
    905,390,531,022.40x = 617,059,797,501,556,857,765,888
  5. Step 5: Solve for x
    x = 617,059,797,501,556,857,765,888/905,390,531,022.40
  6. Step 6: Final answer
    x = 681,539,928,195.13

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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.