Home / 72,114,955.82-99,518,985.54-39,075,196.22

Finding the Fourth Proportional to 72,114,955.82, 99,518,985.54 and 39,075,196.22

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Solution

The fourth proportional to 72,114,955.82, 99,518,985.54 and 39,075,196.22 is: 53,923,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,114,955.82 : 99,518,985.54 = 39,075,196.22 : x
  2. Step 2: Convert to fraction form
    72,114,955.82/99,518,985.54 = 39,075,196.22/x
  3. Step 3: Cross multiply
    72,114,955.82x = 99,518,985.54 × 39,075,196.22
  4. Step 4: Simplify right side
    72,114,955.82x = 3,888,723,887,590,843
  5. Step 5: Solve for x
    x = 3,888,723,887,590,843/72,114,955.82
  6. Step 6: Final answer
    x = 53,923,958.54

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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.