Home / 538,294,249,437.63-742,684,793,536.41-309,917,619,581.91

Finding the Fourth Proportional to 538,294,249,437.63, 742,684,793,536.41 and 309,917,619,581.91

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Solution

The fourth proportional to 538,294,249,437.63, 742,684,793,536.41 and 309,917,619,581.91 is: 427,593,465,010.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,294,249,437.63 : 742,684,793,536.41 = 309,917,619,581.91 : x
  2. Step 2: Convert to fraction form
    538,294,249,437.63/742,684,793,536.41 = 309,917,619,581.91/x
  3. Step 3: Cross multiply
    538,294,249,437.63x = 742,684,793,536.41 × 309,917,619,581.91
  4. Step 4: Simplify right side
    538,294,249,437.63x = 230,171,103,312,486,462,390,272
  5. Step 5: Solve for x
    x = 230,171,103,312,486,462,390,272/538,294,249,437.63
  6. Step 6: Final answer
    x = 427,593,465,010.92

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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.