Home / 620,333,316.78-856,021,513.95-341,859,282.54

Finding the Fourth Proportional to 620,333,316.78, 856,021,513.95 and 341,859,282.54

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Solution

The fourth proportional to 620,333,316.78, 856,021,513.95 and 341,859,282.54 is: 471,744,613.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,333,316.78 : 856,021,513.95 = 341,859,282.54 : x
  2. Step 2: Convert to fraction form
    620,333,316.78/856,021,513.95 = 341,859,282.54/x
  3. Step 3: Cross multiply
    620,333,316.78x = 856,021,513.95 × 341,859,282.54
  4. Step 4: Simplify right side
    620,333,316.78x = 292,638,900,597,751,616
  5. Step 5: Solve for x
    x = 292,638,900,597,751,616/620,333,316.78
  6. Step 6: Final answer
    x = 471,744,613.23

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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.