Home / 459,729,043.40-689,591,750.70-136,612,915.40

Finding the Fourth Proportional to 459,729,043.40, 689,591,750.70 and 136,612,915.40

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Solution

The fourth proportional to 459,729,043.40, 689,591,750.70 and 136,612,915.40 is: 204,918,833.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,729,043.40 : 689,591,750.70 = 136,612,915.40 : x
  2. Step 2: Convert to fraction form
    459,729,043.40/689,591,750.70 = 136,612,915.40/x
  3. Step 3: Cross multiply
    459,729,043.40x = 689,591,750.70 × 136,612,915.40
  4. Step 4: Simplify right side
    459,729,043.40x = 94,207,139,498,917,008
  5. Step 5: Solve for x
    x = 94,207,139,498,917,008/459,729,043.40
  6. Step 6: Final answer
    x = 204,918,833.93

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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.