Home / 517,917,818.97-777,183,127.16-190,623,208.77

Finding the Fourth Proportional to 517,917,818.97, 777,183,127.16 and 190,623,208.77

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Solution

The fourth proportional to 517,917,818.97, 777,183,127.16 and 190,623,208.77 is: 286,047,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,917,818.97 : 777,183,127.16 = 190,623,208.77 : x
  2. Step 2: Convert to fraction form
    517,917,818.97/777,183,127.16 = 190,623,208.77/x
  3. Step 3: Cross multiply
    517,917,818.97x = 777,183,127.16 × 190,623,208.77
  4. Step 4: Simplify right side
    517,917,818.97x = 148,149,141,500,189,024
  5. Step 5: Solve for x
    x = 148,149,141,500,189,024/517,917,818.97
  6. Step 6: Final answer
    x = 286,047,585.30

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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.