Home / 72,115,047.18-99,519,111.48-39,075,287.58

Finding the Fourth Proportional to 72,115,047.18, 99,519,111.48 and 39,075,287.58

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Solution

The fourth proportional to 72,115,047.18, 99,519,111.48 and 39,075,287.58 is: 53,924,084.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,115,047.18 : 99,519,111.48 = 39,075,287.58 : x
  2. Step 2: Convert to fraction form
    72,115,047.18/99,519,111.48 = 39,075,287.58/x
  3. Step 3: Cross multiply
    72,115,047.18x = 99,519,111.48 × 39,075,287.58
  4. Step 4: Simplify right side
    72,115,047.18x = 3,888,737,900,787,079.50
  5. Step 5: Solve for x
    x = 3,888,737,900,787,079.50/72,115,047.18
  6. Step 6: Final answer
    x = 53,924,084.54

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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.