Home / 12,315,047.30-18,441,078.15-9,102,781.70

Finding the Fourth Proportional to 12,315,047.30, 18,441,078.15 and 9,102,781.70

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Solution

The fourth proportional to 12,315,047.30, 18,441,078.15 and 9,102,781.70 is: 13,630,894.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315,047.30 : 18,441,078.15 = 9,102,781.70 : x
  2. Step 2: Convert to fraction form
    12,315,047.30/18,441,078.15 = 9,102,781.70/x
  3. Step 3: Cross multiply
    12,315,047.30x = 18,441,078.15 × 9,102,781.70
  4. Step 4: Simplify right side
    12,315,047.30x = 167,865,108,712,089.81
  5. Step 5: Solve for x
    x = 167,865,108,712,089.81/12,315,047.30
  6. Step 6: Final answer
    x = 13,630,894.35

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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.