Home / 948,760,153.65-1,421,286,828.16-653,603,136.66

Finding the Fourth Proportional to 948,760,153.65, 1,421,286,828.16 and 653,603,136.66

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Solution

The fourth proportional to 948,760,153.65, 1,421,286,828.16 and 653,603,136.66 is: 979,127,891.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,760,153.65 : 1,421,286,828.16 = 653,603,136.66 : x
  2. Step 2: Convert to fraction form
    948,760,153.65/1,421,286,828.16 = 653,603,136.66/x
  3. Step 3: Cross multiply
    948,760,153.65x = 1,421,286,828.16 × 653,603,136.66
  4. Step 4: Simplify right side
    948,760,153.65x = 928,957,528,978,918,400
  5. Step 5: Solve for x
    x = 928,957,528,978,918,400/948,760,153.65
  6. Step 6: Final answer
    x = 979,127,891.71

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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.