Home / 420,118,606.94-579,814,516.31-239,109,598.08

Finding the Fourth Proportional to 420,118,606.94, 579,814,516.31 and 239,109,598.08

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Solution

The fourth proportional to 420,118,606.94, 579,814,516.31 and 239,109,598.08 is: 330,000,180.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,118,606.94 : 579,814,516.31 = 239,109,598.08 : x
  2. Step 2: Convert to fraction form
    420,118,606.94/579,814,516.31 = 239,109,598.08/x
  3. Step 3: Cross multiply
    420,118,606.94x = 579,814,516.31 × 239,109,598.08
  4. Step 4: Simplify right side
    420,118,606.94x = 138,639,215,954,638,144
  5. Step 5: Solve for x
    x = 138,639,215,954,638,144/420,118,606.94
  6. Step 6: Final answer
    x = 330,000,180.11

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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.