Home / 20,605,782.36-30,908,954.08-7,646,925.76

Finding the Fourth Proportional to 20,605,782.36, 30,908,954.08 and 7,646,925.76

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Solution

The fourth proportional to 20,605,782.36, 30,908,954.08 and 7,646,925.76 is: 11,470,492.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,605,782.36 : 30,908,954.08 = 7,646,925.76 : x
  2. Step 2: Convert to fraction form
    20,605,782.36/30,908,954.08 = 7,646,925.76/x
  3. Step 3: Cross multiply
    20,605,782.36x = 30,908,954.08 × 7,646,925.76
  4. Step 4: Simplify right side
    20,605,782.36x = 236,358,477,169,009.09
  5. Step 5: Solve for x
    x = 236,358,477,169,009.09/20,605,782.36
  6. Step 6: Final answer
    x = 11,470,492.75

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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.