Home / 428,129,793,322.92-590,834,648,235.42-245,262,237,512.76

Finding the Fourth Proportional to 428,129,793,322.92, 590,834,648,235.42 and 245,262,237,512.76

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Solution

The fourth proportional to 428,129,793,322.92, 590,834,648,235.42 and 245,262,237,512.76 is: 338,470,786,397.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,129,793,322.92 : 590,834,648,235.42 = 245,262,237,512.76 : x
  2. Step 2: Convert to fraction form
    428,129,793,322.92/590,834,648,235.42 = 245,262,237,512.76/x
  3. Step 3: Cross multiply
    428,129,793,322.92x = 590,834,648,235.42 × 245,262,237,512.76
  4. Step 4: Simplify right side
    428,129,793,322.92x = 144,909,427,826,283,606,179,840
  5. Step 5: Solve for x
    x = 144,909,427,826,283,606,179,840/428,129,793,322.92
  6. Step 6: Final answer
    x = 338,470,786,397.68

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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.