Home / 505,513,735.32-697,609,899.92-282,495,417.16

Finding the Fourth Proportional to 505,513,735.32, 697,609,899.92 and 282,495,417.16

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Solution

The fourth proportional to 505,513,735.32, 697,609,899.92 and 282,495,417.16 is: 389,844,203.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,513,735.32 : 697,609,899.92 = 282,495,417.16 : x
  2. Step 2: Convert to fraction form
    505,513,735.32/697,609,899.92 = 282,495,417.16/x
  3. Step 3: Cross multiply
    505,513,735.32x = 697,609,899.92 × 282,495,417.16
  4. Step 4: Simplify right side
    505,513,735.32x = 197,071,599,692,846,272
  5. Step 5: Solve for x
    x = 197,071,599,692,846,272/505,513,735.32
  6. Step 6: Final answer
    x = 389,844,203.87

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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.