Home / 308,457,128.08-462,458,943.96-147,012,438.16

Finding the Fourth Proportional to 308,457,128.08, 462,458,943.96 and 147,012,438.16

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Solution

The fourth proportional to 308,457,128.08, 462,458,943.96 and 147,012,438.16 is: 220,410,587.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,457,128.08 : 462,458,943.96 = 147,012,438.16 : x
  2. Step 2: Convert to fraction form
    308,457,128.08/462,458,943.96 = 147,012,438.16/x
  3. Step 3: Cross multiply
    308,457,128.08x = 462,458,943.96 × 147,012,438.16
  4. Step 4: Simplify right side
    308,457,128.08x = 67,987,216,900,458,400
  5. Step 5: Solve for x
    x = 67,987,216,900,458,400/308,457,128.08
  6. Step 6: Final answer
    x = 220,410,587.77

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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.