Home / 72,114,952.82-99,518,981.40-39,075,193.22

Finding the Fourth Proportional to 72,114,952.82, 99,518,981.40 and 39,075,193.22

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Solution

The fourth proportional to 72,114,952.82, 99,518,981.40 and 39,075,193.22 is: 53,923,954.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,114,952.82 : 99,518,981.40 = 39,075,193.22 : x
  2. Step 2: Convert to fraction form
    72,114,952.82/99,518,981.40 = 39,075,193.22/x
  3. Step 3: Cross multiply
    72,114,952.82x = 99,518,981.40 × 39,075,193.22
  4. Step 4: Simplify right side
    72,114,952.82x = 3,888,723,426,764,992
  5. Step 5: Solve for x
    x = 3,888,723,426,764,992/72,114,952.82
  6. Step 6: Final answer
    x = 53,923,954.39

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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.