Home / 415,977,667.80-623,798,540.10-143,208,029.40

Finding the Fourth Proportional to 415,977,667.80, 623,798,540.10 and 143,208,029.40

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Solution

The fourth proportional to 415,977,667.80, 623,798,540.10 and 143,208,029.40 is: 214,754,220.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,977,667.80 : 623,798,540.10 = 143,208,029.40 : x
  2. Step 2: Convert to fraction form
    415,977,667.80/623,798,540.10 = 143,208,029.40/x
  3. Step 3: Cross multiply
    415,977,667.80x = 623,798,540.10 × 143,208,029.40
  4. Step 4: Simplify right side
    415,977,667.80x = 89,332,959,670,317,888
  5. Step 5: Solve for x
    x = 89,332,959,670,317,888/415,977,667.80
  6. Step 6: Final answer
    x = 214,754,220.20

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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.