Home / 28,545,572.40-39,392,928.89-15,492,831.49

Finding the Fourth Proportional to 28,545,572.40, 39,392,928.89 and 15,492,831.49

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Solution

The fourth proportional to 28,545,572.40, 39,392,928.89 and 15,492,831.49 is: 21,380,128.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545,572.40 : 39,392,928.89 = 15,492,831.49 : x
  2. Step 2: Convert to fraction form
    28,545,572.40/39,392,928.89 = 15,492,831.49/x
  3. Step 3: Cross multiply
    28,545,572.40x = 39,392,928.89 × 15,492,831.49
  4. Step 4: Simplify right side
    28,545,572.40x = 610,308,009,190,322.75
  5. Step 5: Solve for x
    x = 610,308,009,190,322.75/28,545,572.40
  6. Step 6: Final answer
    x = 21,380,128.61

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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.