Home / 129,302,766.54-178,435,327.85-70,565,852.01

Finding the Fourth Proportional to 129,302,766.54, 178,435,327.85 and 70,565,852.01

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Solution

The fourth proportional to 129,302,766.54, 178,435,327.85 and 70,565,852.01 is: 97,379,516.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,302,766.54 : 178,435,327.85 = 70,565,852.01 : x
  2. Step 2: Convert to fraction form
    129,302,766.54/178,435,327.85 = 70,565,852.01/x
  3. Step 3: Cross multiply
    129,302,766.54x = 178,435,327.85 × 70,565,852.01
  4. Step 4: Simplify right side
    129,302,766.54x = 12,591,440,938,066,104
  5. Step 5: Solve for x
    x = 12,591,440,938,066,104/129,302,766.54
  6. Step 6: Final answer
    x = 97,379,516.89

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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.