Home / 127,878,768.70-191,818,153.05-47,089,239.10

Finding the Fourth Proportional to 127,878,768.70, 191,818,153.05 and 47,089,239.10

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Solution

The fourth proportional to 127,878,768.70, 191,818,153.05 and 47,089,239.10 is: 70,633,858.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,878,768.70 : 191,818,153.05 = 47,089,239.10 : x
  2. Step 2: Convert to fraction form
    127,878,768.70/191,818,153.05 = 47,089,239.10/x
  3. Step 3: Cross multiply
    127,878,768.70x = 191,818,153.05 × 47,089,239.10
  4. Step 4: Simplify right side
    127,878,768.70x = 9,032,570,872,691,846
  5. Step 5: Solve for x
    x = 9,032,570,872,691,846/127,878,768.70
  6. Step 6: Final answer
    x = 70,633,858.65

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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.