Home / 210,383,999.80-315,575,999.70-57,029,810.20

Finding the Fourth Proportional to 210,383,999.80, 315,575,999.70 and 57,029,810.20

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Solution

The fourth proportional to 210,383,999.80, 315,575,999.70 and 57,029,810.20 is: 85,544,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,383,999.80 : 315,575,999.70 = 57,029,810.20 : x
  2. Step 2: Convert to fraction form
    210,383,999.80/315,575,999.70 = 57,029,810.20/x
  3. Step 3: Cross multiply
    210,383,999.80x = 315,575,999.70 × 57,029,810.20
  4. Step 4: Simplify right side
    210,383,999.80x = 17,997,239,366,566,258
  5. Step 5: Solve for x
    x = 17,997,239,366,566,258/210,383,999.80
  6. Step 6: Final answer
    x = 85,544,715.30

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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.