Home / 129,051,699.48-178,089,102.72-70,314,847.20

Finding the Fourth Proportional to 129,051,699.48, 178,089,102.72 and 70,314,847.20

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Solution

The fourth proportional to 129,051,699.48, 178,089,102.72 and 70,314,847.20 is: 97,033,267.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,051,699.48 : 178,089,102.72 = 70,314,847.20 : x
  2. Step 2: Convert to fraction form
    129,051,699.48/178,089,102.72 = 70,314,847.20/x
  3. Step 3: Cross multiply
    129,051,699.48x = 178,089,102.72 × 70,314,847.20
  4. Step 4: Simplify right side
    129,051,699.48x = 12,522,308,045,741,904
  5. Step 5: Solve for x
    x = 12,522,308,045,741,904/129,051,699.48
  6. Step 6: Final answer
    x = 97,033,267.26

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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.