Home / 448,525,999.20-672,788,998.80-141,912,098.40

Finding the Fourth Proportional to 448,525,999.20, 672,788,998.80 and 141,912,098.40

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Solution

The fourth proportional to 448,525,999.20, 672,788,998.80 and 141,912,098.40 is: 212,868,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,525,999.20 : 672,788,998.80 = 141,912,098.40 : x
  2. Step 2: Convert to fraction form
    448,525,999.20/672,788,998.80 = 141,912,098.40/x
  3. Step 3: Cross multiply
    448,525,999.20x = 672,788,998.80 × 141,912,098.40
  4. Step 4: Simplify right side
    448,525,999.20x = 95,476,898,600,143,072
  5. Step 5: Solve for x
    x = 95,476,898,600,143,072/448,525,999.20
  6. Step 6: Final answer
    x = 212,868,147.60

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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.