Home / 39,905,044.12-55,068,936.51-21,570,329.62

Finding the Fourth Proportional to 39,905,044.12, 55,068,936.51 and 21,570,329.62

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Solution

The fourth proportional to 39,905,044.12, 55,068,936.51 and 21,570,329.62 is: 29,767,041.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905,044.12 : 55,068,936.51 = 21,570,329.62 : x
  2. Step 2: Convert to fraction form
    39,905,044.12/55,068,936.51 = 21,570,329.62/x
  3. Step 3: Cross multiply
    39,905,044.12x = 55,068,936.51 × 21,570,329.62
  4. Step 4: Simplify right side
    39,905,044.12x = 1,187,855,112,343,552.50
  5. Step 5: Solve for x
    x = 1,187,855,112,343,552.50/39,905,044.12
  6. Step 6: Final answer
    x = 29,767,041.70

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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.