Home / 153,586,883.92-211,945,830.24-90,866,217.10

Finding the Fourth Proportional to 153,586,883.92, 211,945,830.24 and 90,866,217.10

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Solution

The fourth proportional to 153,586,883.92, 211,945,830.24 and 90,866,217.10 is: 125,392,971.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,586,883.92 : 211,945,830.24 = 90,866,217.10 : x
  2. Step 2: Convert to fraction form
    153,586,883.92/211,945,830.24 = 90,866,217.10/x
  3. Step 3: Cross multiply
    153,586,883.92x = 211,945,830.24 × 90,866,217.10
  4. Step 4: Simplify right side
    153,586,883.92x = 19,258,715,824,027,584
  5. Step 5: Solve for x
    x = 19,258,715,824,027,584/153,586,883.92
  6. Step 6: Final answer
    x = 125,392,971.93

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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.