Home / 229,139,847.87-316,239,916.06-128,684,794.02

Finding the Fourth Proportional to 229,139,847.87, 316,239,916.06 and 128,684,794.02

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Solution

The fourth proportional to 229,139,847.87, 316,239,916.06 and 128,684,794.02 is: 177,600,137.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,139,847.87 : 316,239,916.06 = 128,684,794.02 : x
  2. Step 2: Convert to fraction form
    229,139,847.87/316,239,916.06 = 128,684,794.02/x
  3. Step 3: Cross multiply
    229,139,847.87x = 316,239,916.06 × 128,684,794.02
  4. Step 4: Simplify right side
    229,139,847.87x = 40,695,268,457,501,992
  5. Step 5: Solve for x
    x = 40,695,268,457,501,992/229,139,847.87
  6. Step 6: Final answer
    x = 177,600,137.37

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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.