Home / 28,545,572.18-39,392,928.51-15,492,831.28

Finding the Fourth Proportional to 28,545,572.18, 39,392,928.51 and 15,492,831.28

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Solution

The fourth proportional to 28,545,572.18, 39,392,928.51 and 15,492,831.28 is: 21,380,128.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545,572.18 : 39,392,928.51 = 15,492,831.28 : x
  2. Step 2: Convert to fraction form
    28,545,572.18/39,392,928.51 = 15,492,831.28/x
  3. Step 3: Cross multiply
    28,545,572.18x = 39,392,928.51 × 15,492,831.28
  4. Step 4: Simplify right side
    28,545,572.18x = 610,307,994,932,049.38
  5. Step 5: Solve for x
    x = 610,307,994,932,049.38/28,545,572.18
  6. Step 6: Final answer
    x = 21,380,128.27

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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.