Home / 149,603,867.70-206,437,609.71-86,867,702.34

Finding the Fourth Proportional to 149,603,867.70, 206,437,609.71 and 86,867,702.34

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Solution

The fourth proportional to 149,603,867.70, 206,437,609.71 and 86,867,702.34 is: 119,868,296.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,603,867.70 : 206,437,609.71 = 86,867,702.34 : x
  2. Step 2: Convert to fraction form
    149,603,867.70/206,437,609.71 = 86,867,702.34/x
  3. Step 3: Cross multiply
    149,603,867.70x = 206,437,609.71 × 86,867,702.34
  4. Step 4: Simplify right side
    149,603,867.70x = 17,932,760,832,069,376
  5. Step 5: Solve for x
    x = 17,932,760,832,069,376/149,603,867.70
  6. Step 6: Final answer
    x = 119,868,296.91

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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.