Home / 438,361,941.72-657,460,705.68-219,953,641.08

Finding the Fourth Proportional to 438,361,941.72, 657,460,705.68 and 219,953,641.08

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Solution

The fourth proportional to 438,361,941.72, 657,460,705.68 and 219,953,641.08 is: 329,889,213.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,361,941.72 : 657,460,705.68 = 219,953,641.08 : x
  2. Step 2: Convert to fraction form
    438,361,941.72/657,460,705.68 = 219,953,641.08/x
  3. Step 3: Cross multiply
    438,361,941.72x = 657,460,705.68 × 219,953,641.08
  4. Step 4: Simplify right side
    438,361,941.72x = 144,610,876,081,342,240
  5. Step 5: Solve for x
    x = 144,610,876,081,342,240/438,361,941.72
  6. Step 6: Final answer
    x = 329,889,213.27

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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.