Home / 111,989,477.28-154,554,678.53-61,763,518.79

Finding the Fourth Proportional to 111,989,477.28, 154,554,678.53 and 61,763,518.79

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Solution

The fourth proportional to 111,989,477.28, 154,554,678.53 and 61,763,518.79 is: 85,238,729.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,989,477.28 : 154,554,678.53 = 61,763,518.79 : x
  2. Step 2: Convert to fraction form
    111,989,477.28/154,554,678.53 = 61,763,518.79/x
  3. Step 3: Cross multiply
    111,989,477.28x = 154,554,678.53 × 61,763,518.79
  4. Step 4: Simplify right side
    111,989,477.28x = 9,545,840,791,633,914
  5. Step 5: Solve for x
    x = 9,545,840,791,633,914/111,989,477.28
  6. Step 6: Final answer
    x = 85,238,729.78

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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.