Home / 12,477,332.40-18,702,001.80-6,409,719.60

Finding the Fourth Proportional to 12,477,332.40, 18,702,001.80 and 6,409,719.60

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Solution

The fourth proportional to 12,477,332.40, 18,702,001.80 and 6,409,719.60 is: 9,607,389.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477,332.40 : 18,702,001.80 = 6,409,719.60 : x
  2. Step 2: Convert to fraction form
    12,477,332.40/18,702,001.80 = 6,409,719.60/x
  3. Step 3: Cross multiply
    12,477,332.40x = 18,702,001.80 × 6,409,719.60
  4. Step 4: Simplify right side
    12,477,332.40x = 119,874,587,496,695.28
  5. Step 5: Solve for x
    x = 119,874,587,496,695.28/12,477,332.40
  6. Step 6: Final answer
    x = 9,607,389.12

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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.