Home / 28,545,721.06-39,393,133.77-15,492,980.38

Finding the Fourth Proportional to 28,545,721.06, 39,393,133.77 and 15,492,980.38

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Solution

The fourth proportional to 28,545,721.06, 39,393,133.77 and 15,492,980.38 is: 21,380,333.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545,721.06 : 39,393,133.77 = 15,492,980.38 : x
  2. Step 2: Convert to fraction form
    28,545,721.06/39,393,133.77 = 15,492,980.38/x
  3. Step 3: Cross multiply
    28,545,721.06x = 39,393,133.77 × 15,492,980.38
  4. Step 4: Simplify right side
    28,545,721.06x = 610,317,048,605,325.50
  5. Step 5: Solve for x
    x = 610,317,048,605,325.50/28,545,721.06
  6. Step 6: Final answer
    x = 21,380,333.93

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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.