Home / 113,789,712.89-157,030,282.53-61,578,751.12

Finding the Fourth Proportional to 113,789,712.89, 157,030,282.53 and 61,578,751.12

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Solution

The fourth proportional to 113,789,712.89, 157,030,282.53 and 61,578,751.12 is: 84,978,935.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,789,712.89 : 157,030,282.53 = 61,578,751.12 : x
  2. Step 2: Convert to fraction form
    113,789,712.89/157,030,282.53 = 61,578,751.12/x
  3. Step 3: Cross multiply
    113,789,712.89x = 157,030,282.53 × 61,578,751.12
  4. Step 4: Simplify right side
    113,789,712.89x = 9,669,728,685,825,578
  5. Step 5: Solve for x
    x = 9,669,728,685,825,578/113,789,712.89
  6. Step 6: Final answer
    x = 84,978,935.62

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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.