Home / 505,513,725.30-697,609,886.13-282,495,407.16

Finding the Fourth Proportional to 505,513,725.30, 697,609,886.13 and 282,495,407.16

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Solution

The fourth proportional to 505,513,725.30, 697,609,886.13 and 282,495,407.16 is: 389,844,190.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,513,725.30 : 697,609,886.13 = 282,495,407.16 : x
  2. Step 2: Convert to fraction form
    505,513,725.30/697,609,886.13 = 282,495,407.16/x
  3. Step 3: Cross multiply
    505,513,725.30x = 697,609,886.13 × 282,495,407.16
  4. Step 4: Simplify right side
    505,513,725.30x = 197,071,588,821,135,616
  5. Step 5: Solve for x
    x = 197,071,588,821,135,616/505,513,725.30
  6. Step 6: Final answer
    x = 389,844,190.09

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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.