Home / 129,302,766.04-178,435,327.16-70,565,851.51

Finding the Fourth Proportional to 129,302,766.04, 178,435,327.16 and 70,565,851.51

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Solution

The fourth proportional to 129,302,766.04, 178,435,327.16 and 70,565,851.51 is: 97,379,516.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,302,766.04 : 178,435,327.16 = 70,565,851.51 : x
  2. Step 2: Convert to fraction form
    129,302,766.04/178,435,327.16 = 70,565,851.51/x
  3. Step 3: Cross multiply
    129,302,766.04x = 178,435,327.16 × 70,565,851.51
  4. Step 4: Simplify right side
    129,302,766.04x = 12,591,440,800,510,830
  5. Step 5: Solve for x
    x = 12,591,440,800,510,830/129,302,766.04
  6. Step 6: Final answer
    x = 97,379,516.20

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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.