Home / 129,486,820.20-194,230,230.30-118,905,239.40

Finding the Fourth Proportional to 129,486,820.20, 194,230,230.30 and 118,905,239.40

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Solution

The fourth proportional to 129,486,820.20, 194,230,230.30 and 118,905,239.40 is: 178,357,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,486,820.20 : 194,230,230.30 = 118,905,239.40 : x
  2. Step 2: Convert to fraction form
    129,486,820.20/194,230,230.30 = 118,905,239.40/x
  3. Step 3: Cross multiply
    129,486,820.20x = 194,230,230.30 × 118,905,239.40
  4. Step 4: Simplify right side
    129,486,820.20x = 23,094,992,032,538,636
  5. Step 5: Solve for x
    x = 23,094,992,032,538,636/129,486,820.20
  6. Step 6: Final answer
    x = 178,357,859.10

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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.