Home / 28,441,476.30-39,248,957.87-15,388,448.81

Finding the Fourth Proportional to 28,441,476.30, 39,248,957.87 and 15,388,448.81

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Solution

The fourth proportional to 28,441,476.30, 39,248,957.87 and 15,388,448.81 is: 21,235,908.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,441,476.30 : 39,248,957.87 = 15,388,448.81 : x
  2. Step 2: Convert to fraction form
    28,441,476.30/39,248,957.87 = 15,388,448.81/x
  3. Step 3: Cross multiply
    28,441,476.30x = 39,248,957.87 × 15,388,448.81
  4. Step 4: Simplify right side
    28,441,476.30x = 603,980,578,755,154.62
  5. Step 5: Solve for x
    x = 603,980,578,755,154.62/28,441,476.30
  6. Step 6: Final answer
    x = 21,235,908.16

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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.