Home / 81,134,390.62-111,953,075.55-45,839,317.36

Finding the Fourth Proportional to 81,134,390.62, 111,953,075.55 and 45,839,317.36

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Solution

The fourth proportional to 81,134,390.62, 111,953,075.55 and 45,839,317.36 is: 63,251,261.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,134,390.62 : 111,953,075.55 = 45,839,317.36 : x
  2. Step 2: Convert to fraction form
    81,134,390.62/111,953,075.55 = 45,839,317.36/x
  3. Step 3: Cross multiply
    81,134,390.62x = 111,953,075.55 × 45,839,317.36
  4. Step 4: Simplify right side
    81,134,390.62x = 5,131,852,559,834,270
  5. Step 5: Solve for x
    x = 5,131,852,559,834,270/81,134,390.62
  6. Step 6: Final answer
    x = 63,251,261.52

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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.