Home / 93,136,647.78-128,535,367.05-53,988,531.30

Finding the Fourth Proportional to 93,136,647.78, 128,535,367.05 and 53,988,531.30

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Solution

The fourth proportional to 93,136,647.78, 128,535,367.05 and 53,988,531.30 is: 74,508,110.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,136,647.78 : 128,535,367.05 = 53,988,531.30 : x
  2. Step 2: Convert to fraction form
    93,136,647.78/128,535,367.05 = 53,988,531.30/x
  3. Step 3: Cross multiply
    93,136,647.78x = 128,535,367.05 × 53,988,531.30
  4. Step 4: Simplify right side
    93,136,647.78x = 6,939,435,687,135,913
  5. Step 5: Solve for x
    x = 6,939,435,687,135,913/93,136,647.78
  6. Step 6: Final answer
    x = 74,508,110.96

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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.