Home / 12,478,647.70-18,700,475.55-9,924,231.70

Finding the Fourth Proportional to 12,478,647.70, 18,700,475.55 and 9,924,231.70

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Solution

The fourth proportional to 12,478,647.70, 18,700,475.55 and 9,924,231.70 is: 14,872,433.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,647.70 : 18,700,475.55 = 9,924,231.70 : x
  2. Step 2: Convert to fraction form
    12,478,647.70/18,700,475.55 = 9,924,231.70/x
  3. Step 3: Cross multiply
    12,478,647.70x = 18,700,475.55 × 9,924,231.70
  4. Step 4: Simplify right side
    12,478,647.70x = 185,587,852,258,384.94
  5. Step 5: Solve for x
    x = 185,587,852,258,384.94/12,478,647.70
  6. Step 6: Final answer
    x = 14,872,433.03

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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.