Home / 138,697,141.62-208,075,527.96-40,330,557.72

Finding the Fourth Proportional to 138,697,141.62, 208,075,527.96 and 40,330,557.72

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Solution

The fourth proportional to 138,697,141.62, 208,075,527.96 and 40,330,557.72 is: 60,504,506.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,697,141.62 : 208,075,527.96 = 40,330,557.72 : x
  2. Step 2: Convert to fraction form
    138,697,141.62/208,075,527.96 = 40,330,557.72/x
  3. Step 3: Cross multiply
    138,697,141.62x = 208,075,527.96 × 40,330,557.72
  4. Step 4: Simplify right side
    138,697,141.62x = 8,391,802,090,510,254
  5. Step 5: Solve for x
    x = 8,391,802,090,510,254/138,697,141.62
  6. Step 6: Final answer
    x = 60,504,506.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.