Home / 948,760,161.65-1,421,286,840.15-653,603,144.66

Finding the Fourth Proportional to 948,760,161.65, 1,421,286,840.15 and 653,603,144.66

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Solution

The fourth proportional to 948,760,161.65, 1,421,286,840.15 and 653,603,144.66 is: 979,127,903.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,760,161.65 : 1,421,286,840.15 = 653,603,144.66 : x
  2. Step 2: Convert to fraction form
    948,760,161.65/1,421,286,840.15 = 653,603,144.66/x
  3. Step 3: Cross multiply
    948,760,161.65x = 1,421,286,840.15 × 653,603,144.66
  4. Step 4: Simplify right side
    948,760,161.65x = 928,957,548,178,808,320
  5. Step 5: Solve for x
    x = 928,957,548,178,808,320/948,760,161.65
  6. Step 6: Final answer
    x = 979,127,903.69

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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.