Home / 418,886,075,618.46-628,417,358,658.99-135,882,821,415.42

Finding the Fourth Proportional to 418,886,075,618.46, 628,417,358,658.99 and 135,882,821,415.42

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Solution

The fourth proportional to 418,886,075,618.46, 628,417,358,658.99 and 135,882,821,415.42 is: 203,852,858,071.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,886,075,618.46 : 628,417,358,658.99 = 135,882,821,415.42 : x
  2. Step 2: Convert to fraction form
    418,886,075,618.46/628,417,358,658.99 = 135,882,821,415.42/x
  3. Step 3: Cross multiply
    418,886,075,618.46x = 628,417,358,658.99 × 135,882,821,415.42
  4. Step 4: Simplify right side
    418,886,075,618.46x = 85,391,123,721,009,477,189,632
  5. Step 5: Solve for x
    x = 85,391,123,721,009,477,189,632/418,886,075,618.46
  6. Step 6: Final answer
    x = 203,852,858,071.10

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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.