Home / 118,872,000.90-178,308,001.35-77,260,170.60

Finding the Fourth Proportional to 118,872,000.90, 178,308,001.35 and 77,260,170.60

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Solution

The fourth proportional to 118,872,000.90, 178,308,001.35 and 77,260,170.60 is: 115,890,255.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,872,000.90 : 178,308,001.35 = 77,260,170.60 : x
  2. Step 2: Convert to fraction form
    118,872,000.90/178,308,001.35 = 77,260,170.60/x
  3. Step 3: Cross multiply
    118,872,000.90x = 178,308,001.35 × 77,260,170.60
  4. Step 4: Simplify right side
    118,872,000.90x = 13,776,106,603,646,028
  5. Step 5: Solve for x
    x = 13,776,106,603,646,028/118,872,000.90
  6. Step 6: Final answer
    x = 115,890,255.90

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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.