Home / 435,455,998.80-653,239,985.40-217,217,893.20

Finding the Fourth Proportional to 435,455,998.80, 653,239,985.40 and 217,217,893.20

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Solution

The fourth proportional to 435,455,998.80, 653,239,985.40 and 217,217,893.20 is: 325,854,767.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,455,998.80 : 653,239,985.40 = 217,217,893.20 : x
  2. Step 2: Convert to fraction form
    435,455,998.80/653,239,985.40 = 217,217,893.20/x
  3. Step 3: Cross multiply
    435,455,998.80x = 653,239,985.40 × 217,217,893.20
  4. Step 4: Simplify right side
    435,455,998.80x = 141,895,413,382,586,752
  5. Step 5: Solve for x
    x = 141,895,413,382,586,752/435,455,998.80
  6. Step 6: Final answer
    x = 325,854,767.81

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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.