Home / 72,114,977.89-99,519,015.86-39,075,218.29

Finding the Fourth Proportional to 72,114,977.89, 99,519,015.86 and 39,075,218.29

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Solution

The fourth proportional to 72,114,977.89, 99,519,015.86 and 39,075,218.29 is: 53,923,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,114,977.89 : 99,519,015.86 = 39,075,218.29 : x
  2. Step 2: Convert to fraction form
    72,114,977.89/99,519,015.86 = 39,075,218.29/x
  3. Step 3: Cross multiply
    72,114,977.89x = 99,519,015.86 × 39,075,218.29
  4. Step 4: Simplify right side
    72,114,977.89x = 3,888,727,268,735,472
  5. Step 5: Solve for x
    x = 3,888,727,268,735,472/72,114,977.89
  6. Step 6: Final answer
    x = 53,923,988.92

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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.