Home / 111,173,428.25-153,419,345.54-61,617,001.40

Finding the Fourth Proportional to 111,173,428.25, 153,419,345.54 and 61,617,001.40

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Solution

The fourth proportional to 111,173,428.25, 153,419,345.54 and 61,617,001.40 is: 85,031,469.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,173,428.25 : 153,419,345.54 = 61,617,001.40 : x
  2. Step 2: Convert to fraction form
    111,173,428.25/153,419,345.54 = 61,617,001.40/x
  3. Step 3: Cross multiply
    111,173,428.25x = 153,419,345.54 × 61,617,001.40
  4. Step 4: Simplify right side
    111,173,428.25x = 9,453,240,027,850,082
  5. Step 5: Solve for x
    x = 9,453,240,027,850,082/111,173,428.25
  6. Step 6: Final answer
    x = 85,031,469.99

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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.