Home / 42,685,870.05-64,008,870.98-15,388,567.65

Finding the Fourth Proportional to 42,685,870.05, 64,008,870.98 and 15,388,567.65

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Solution

The fourth proportional to 42,685,870.05, 64,008,870.98 and 15,388,567.65 is: 23,075,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,685,870.05 : 64,008,870.98 = 15,388,567.65 : x
  2. Step 2: Convert to fraction form
    42,685,870.05/64,008,870.98 = 15,388,567.65/x
  3. Step 3: Cross multiply
    42,685,870.05x = 64,008,870.98 × 15,388,567.65
  4. Step 4: Simplify right side
    42,685,870.05x = 985,004,841,198,909
  5. Step 5: Solve for x
    x = 985,004,841,198,909/42,685,870.05
  6. Step 6: Final answer
    x = 23,075,665.09

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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.