Home / 459,729,236.40-689,592,040.20-136,613,108.40

Finding the Fourth Proportional to 459,729,236.40, 689,592,040.20 and 136,613,108.40

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Solution

The fourth proportional to 459,729,236.40, 689,592,040.20 and 136,613,108.40 is: 204,919,123.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,729,236.40 : 689,592,040.20 = 136,613,108.40 : x
  2. Step 2: Convert to fraction form
    459,729,236.40/689,592,040.20 = 136,613,108.40/x
  3. Step 3: Cross multiply
    459,729,236.40x = 689,592,040.20 × 136,613,108.40
  4. Step 4: Simplify right side
    459,729,236.40x = 94,207,312,139,619,776
  5. Step 5: Solve for x
    x = 94,207,312,139,619,776/459,729,236.40
  6. Step 6: Final answer
    x = 204,919,123.43

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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.