Home / 118,801,939.59-163,943,750.34-65,878,354.80

Finding the Fourth Proportional to 118,801,939.59, 163,943,750.34 and 65,878,354.80

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Solution

The fourth proportional to 118,801,939.59, 163,943,750.34 and 65,878,354.80 is: 90,910,506.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,801,939.59 : 163,943,750.34 = 65,878,354.80 : x
  2. Step 2: Convert to fraction form
    118,801,939.59/163,943,750.34 = 65,878,354.80/x
  3. Step 3: Cross multiply
    118,801,939.59x = 163,943,750.34 × 65,878,354.80
  4. Step 4: Simplify right side
    118,801,939.59x = 10,800,344,552,141,140
  5. Step 5: Solve for x
    x = 10,800,344,552,141,140/118,801,939.59
  6. Step 6: Final answer
    x = 90,910,506.93

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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.