Home / 47,218,863.60-65,164,457.88-28,878,390

Finding the Fourth Proportional to 47,218,863.60, 65,164,457.88 and 28,878,390

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Solution

The fourth proportional to 47,218,863.60, 65,164,457.88 and 28,878,390 is: 39,853,661.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,218,863.60 : 65,164,457.88 = 28,878,390 : x
  2. Step 2: Convert to fraction form
    47,218,863.60/65,164,457.88 = 28,878,390/x
  3. Step 3: Cross multiply
    47,218,863.60x = 65,164,457.88 × 28,878,390
  4. Step 4: Simplify right side
    47,218,863.60x = 1,881,844,628,797,213.25
  5. Step 5: Solve for x
    x = 1,881,844,628,797,213.25/47,218,863.60
  6. Step 6: Final answer
    x = 39,853,661.98

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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.