Home / 12,578,133.47-18,847,955.34-8,464,219.47

Finding the Fourth Proportional to 12,578,133.47, 18,847,955.34 and 8,464,219.47

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Solution

The fourth proportional to 12,578,133.47, 18,847,955.34 and 8,464,219.47 is: 12,683,378.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578,133.47 : 18,847,955.34 = 8,464,219.47 : x
  2. Step 2: Convert to fraction form
    12,578,133.47/18,847,955.34 = 8,464,219.47/x
  3. Step 3: Cross multiply
    12,578,133.47x = 18,847,955.34 × 8,464,219.47
  4. Step 4: Simplify right side
    12,578,133.47x = 159,533,230,558,518.47
  5. Step 5: Solve for x
    x = 159,533,230,558,518.47/12,578,133.47
  6. Step 6: Final answer
    x = 12,683,378.74

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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.