Home / 147,510,902.01-203,559,709.08-81,429,981.78

Finding the Fourth Proportional to 147,510,902.01, 203,559,709.08 and 81,429,981.78

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Solution

The fourth proportional to 147,510,902.01, 203,559,709.08 and 81,429,981.78 is: 112,370,429.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,510,902.01 : 203,559,709.08 = 81,429,981.78 : x
  2. Step 2: Convert to fraction form
    147,510,902.01/203,559,709.08 = 81,429,981.78/x
  3. Step 3: Cross multiply
    147,510,902.01x = 203,559,709.08 × 81,429,981.78
  4. Step 4: Simplify right side
    147,510,902.01x = 16,575,863,401,526,502
  5. Step 5: Solve for x
    x = 16,575,863,401,526,502/147,510,902.01
  6. Step 6: Final answer
    x = 112,370,429.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.