Home / 427,602,552.92-641,169,488.20-132,415,725.28

Finding the Fourth Proportional to 427,602,552.92, 641,169,488.20 and 132,415,725.28

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Solution

The fourth proportional to 427,602,552.92, 641,169,488.20 and 132,415,725.28 is: 198,551,019.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,602,552.92 : 641,169,488.20 = 132,415,725.28 : x
  2. Step 2: Convert to fraction form
    427,602,552.92/641,169,488.20 = 132,415,725.28/x
  3. Step 3: Cross multiply
    427,602,552.92x = 641,169,488.20 × 132,415,725.28
  4. Step 4: Simplify right side
    427,602,552.92x = 84,900,922,807,409,408
  5. Step 5: Solve for x
    x = 84,900,922,807,409,408/427,602,552.92
  6. Step 6: Final answer
    x = 198,551,019.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.