Home / 435,543,674.88-653,411,174.40-128,811,874.80

Finding the Fourth Proportional to 435,543,674.88, 653,411,174.40 and 128,811,874.80

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Solution

The fourth proportional to 435,543,674.88, 653,411,174.40 and 128,811,874.80 is: 193,246,104.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,543,674.88 : 653,411,174.40 = 128,811,874.80 : x
  2. Step 2: Convert to fraction form
    435,543,674.88/653,411,174.40 = 128,811,874.80/x
  3. Step 3: Cross multiply
    435,543,674.88x = 653,411,174.40 × 128,811,874.80
  4. Step 4: Simplify right side
    435,543,674.88x = 84,167,118,389,733,760
  5. Step 5: Solve for x
    x = 84,167,118,389,733,760/435,543,674.88
  6. Step 6: Final answer
    x = 193,246,104.22

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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.