Home / 111,547,939.91-153,939,890.79-61,990,402.37

Finding the Fourth Proportional to 111,547,939.91, 153,939,890.79 and 61,990,402.37

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Solution

The fourth proportional to 111,547,939.91, 153,939,890.79 and 61,990,402.37 is: 85,548,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,547,939.91 : 153,939,890.79 = 61,990,402.37 : x
  2. Step 2: Convert to fraction form
    111,547,939.91/153,939,890.79 = 61,990,402.37/x
  3. Step 3: Cross multiply
    111,547,939.91x = 153,939,890.79 × 61,990,402.37
  4. Step 4: Simplify right side
    111,547,939.91x = 9,542,795,770,096,258
  5. Step 5: Solve for x
    x = 9,542,795,770,096,258/111,547,939.91
  6. Step 6: Final answer
    x = 85,548,830.20

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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.