Home / 12,216,545-18,316,729.74-5,827,783.40

Finding the Fourth Proportional to 12,216,545, 18,316,729.74 and 5,827,783.40

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Solution

The fourth proportional to 12,216,545, 18,316,729.74 and 5,827,783.40 is: 8,737,816.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216,545 : 18,316,729.74 = 5,827,783.40 : x
  2. Step 2: Convert to fraction form
    12,216,545/18,316,729.74 = 5,827,783.40/x
  3. Step 3: Cross multiply
    12,216,545x = 18,316,729.74 × 5,827,783.40
  4. Step 4: Simplify right side
    12,216,545x = 106,745,933,521,058.31
  5. Step 5: Solve for x
    x = 106,745,933,521,058.31/12,216,545
  6. Step 6: Final answer
    x = 8,737,816.91

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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.