Home / 170,408,072.40-255,780,070.20-84,243,771.60

Finding the Fourth Proportional to 170,408,072.40, 255,780,070.20 and 84,243,771.60

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Solution

The fourth proportional to 170,408,072.40, 255,780,070.20 and 84,243,771.60 is: 126,448,691.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,408,072.40 : 255,780,070.20 = 84,243,771.60 : x
  2. Step 2: Convert to fraction form
    170,408,072.40/255,780,070.20 = 84,243,771.60/x
  3. Step 3: Cross multiply
    170,408,072.40x = 255,780,070.20 × 84,243,771.60
  4. Step 4: Simplify right side
    170,408,072.40x = 21,547,877,813,760,764
  5. Step 5: Solve for x
    x = 21,547,877,813,760,764/170,408,072.40
  6. Step 6: Final answer
    x = 126,448,691.72

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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.