Home / 28,909,620.50-39,904,208.43-18,596,344.51

Finding the Fourth Proportional to 28,909,620.50, 39,904,208.43 and 18,596,344.51

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Solution

The fourth proportional to 28,909,620.50, 39,904,208.43 and 18,596,344.51 is: 25,668,701.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,909,620.50 : 39,904,208.43 = 18,596,344.51 : x
  2. Step 2: Convert to fraction form
    28,909,620.50/39,904,208.43 = 18,596,344.51/x
  3. Step 3: Cross multiply
    28,909,620.50x = 39,904,208.43 × 18,596,344.51
  4. Step 4: Simplify right side
    28,909,620.50x = 742,072,407,163,605.12
  5. Step 5: Solve for x
    x = 742,072,407,163,605.12/28,909,620.50
  6. Step 6: Final answer
    x = 25,668,701.09

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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.