Home / 72,425,192.58-99,945,380.08-39,830,144.58

Finding the Fourth Proportional to 72,425,192.58, 99,945,380.08 and 39,830,144.58

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Solution

The fourth proportional to 72,425,192.58, 99,945,380.08 and 39,830,144.58 is: 54,964,837.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,425,192.58 : 99,945,380.08 = 39,830,144.58 : x
  2. Step 2: Convert to fraction form
    72,425,192.58/99,945,380.08 = 39,830,144.58/x
  3. Step 3: Cross multiply
    72,425,192.58x = 99,945,380.08 × 39,830,144.58
  4. Step 4: Simplify right side
    72,425,192.58x = 3,980,838,938,689,451.50
  5. Step 5: Solve for x
    x = 3,980,838,938,689,451.50/72,425,192.58
  6. Step 6: Final answer
    x = 54,964,837.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.