Home / 129,479,830.40-194,163,758.40-64,758,627.20

Finding the Fourth Proportional to 129,479,830.40, 194,163,758.40 and 64,758,627.20

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Solution

The fourth proportional to 129,479,830.40, 194,163,758.40 and 64,758,627.20 is: 97,109,939.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,479,830.40 : 194,163,758.40 = 64,758,627.20 : x
  2. Step 2: Convert to fraction form
    129,479,830.40/194,163,758.40 = 64,758,627.20/x
  3. Step 3: Cross multiply
    129,479,830.40x = 194,163,758.40 × 64,758,627.20
  4. Step 4: Simplify right side
    129,479,830.40x = 12,573,778,445,976,470
  5. Step 5: Solve for x
    x = 12,573,778,445,976,470/129,479,830.40
  6. Step 6: Final answer
    x = 97,109,939.11

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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.