Home / 435,468,020.80-653,202,031.20-193,603,316.80

Finding the Fourth Proportional to 435,468,020.80, 653,202,031.20 and 193,603,316.80

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Solution

The fourth proportional to 435,468,020.80, 653,202,031.20 and 193,603,316.80 is: 290,404,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,468,020.80 : 653,202,031.20 = 193,603,316.80 : x
  2. Step 2: Convert to fraction form
    435,468,020.80/653,202,031.20 = 193,603,316.80/x
  3. Step 3: Cross multiply
    435,468,020.80x = 653,202,031.20 × 193,603,316.80
  4. Step 4: Simplify right side
    435,468,020.80x = 126,462,079,780,817,104
  5. Step 5: Solve for x
    x = 126,462,079,780,817,104/435,468,020.80
  6. Step 6: Final answer
    x = 290,404,975.20

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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.