Home / 108,698,543.40-163,047,815.10-74,261,166.60

Finding the Fourth Proportional to 108,698,543.40, 163,047,815.10 and 74,261,166.60

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Solution

The fourth proportional to 108,698,543.40, 163,047,815.10 and 74,261,166.60 is: 111,391,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,698,543.40 : 163,047,815.10 = 74,261,166.60 : x
  2. Step 2: Convert to fraction form
    108,698,543.40/163,047,815.10 = 74,261,166.60/x
  3. Step 3: Cross multiply
    108,698,543.40x = 163,047,815.10 × 74,261,166.60
  4. Step 4: Simplify right side
    108,698,543.40x = 12,108,120,960,907,094
  5. Step 5: Solve for x
    x = 12,108,120,960,907,094/108,698,543.40
  6. Step 6: Final answer
    x = 111,391,749.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.