Home / 191,963,999.40-287,945,999.10-123,089,245.80

Finding the Fourth Proportional to 191,963,999.40, 287,945,999.10 and 123,089,245.80

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Solution

The fourth proportional to 191,963,999.40, 287,945,999.10 and 123,089,245.80 is: 184,633,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,963,999.40 : 287,945,999.10 = 123,089,245.80 : x
  2. Step 2: Convert to fraction form
    191,963,999.40/287,945,999.10 = 123,089,245.80/x
  3. Step 3: Cross multiply
    191,963,999.40x = 287,945,999.10 × 123,089,245.80
  4. Step 4: Simplify right side
    191,963,999.40x = 35,443,055,860,346,480
  5. Step 5: Solve for x
    x = 35,443,055,860,346,480/191,963,999.40
  6. Step 6: Final answer
    x = 184,633,868.70

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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.