Home / 208,010,727.60-312,053,416.20-86,854,426.80

Finding the Fourth Proportional to 208,010,727.60, 312,053,416.20 and 86,854,426.80

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Solution

The fourth proportional to 208,010,727.60, 312,053,416.20 and 86,854,426.80 is: 130,297,225.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,010,727.60 : 312,053,416.20 = 86,854,426.80 : x
  2. Step 2: Convert to fraction form
    208,010,727.60/312,053,416.20 = 86,854,426.80/x
  3. Step 3: Cross multiply
    208,010,727.60x = 312,053,416.20 × 86,854,426.80
  4. Step 4: Simplify right side
    208,010,727.60x = 27,103,220,595,032,832
  5. Step 5: Solve for x
    x = 27,103,220,595,032,832/208,010,727.60
  6. Step 6: Final answer
    x = 130,297,225.09

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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.