Home / 517,830,757.32-776,752,867.16-172,784,384.32

Finding the Fourth Proportional to 517,830,757.32, 776,752,867.16 and 172,784,384.32

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Solution

The fourth proportional to 517,830,757.32, 776,752,867.16 and 172,784,384.32 is: 259,178,822.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,830,757.32 : 776,752,867.16 = 172,784,384.32 : x
  2. Step 2: Convert to fraction form
    517,830,757.32/776,752,867.16 = 172,784,384.32/x
  3. Step 3: Cross multiply
    517,830,757.32x = 776,752,867.16 × 172,784,384.32
  4. Step 4: Simplify right side
    517,830,757.32x = 134,210,765,921,035,328
  5. Step 5: Solve for x
    x = 134,210,765,921,035,328/517,830,757.32
  6. Step 6: Final answer
    x = 259,178,822.47

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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.