Home / 349,552,415.32-524,270,164.50-128,178,009.60

Finding the Fourth Proportional to 349,552,415.32, 524,270,164.50 and 128,178,009.60

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Solution

The fourth proportional to 349,552,415.32, 524,270,164.50 and 128,178,009.60 is: 192,245,578.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,552,415.32 : 524,270,164.50 = 128,178,009.60 : x
  2. Step 2: Convert to fraction form
    349,552,415.32/524,270,164.50 = 128,178,009.60/x
  3. Step 3: Cross multiply
    349,552,415.32x = 524,270,164.50 × 128,178,009.60
  4. Step 4: Simplify right side
    349,552,415.32x = 67,199,906,178,274,576
  5. Step 5: Solve for x
    x = 67,199,906,178,274,576/349,552,415.32
  6. Step 6: Final answer
    x = 192,245,578.15

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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.