Home / 131,162,394.83-180,938,728.40-78,201,751.32

Finding the Fourth Proportional to 131,162,394.83, 180,938,728.40 and 78,201,751.32

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Solution

The fourth proportional to 131,162,394.83, 180,938,728.40 and 78,201,751.32 is: 107,879,438.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,162,394.83 : 180,938,728.40 = 78,201,751.32 : x
  2. Step 2: Convert to fraction form
    131,162,394.83/180,938,728.40 = 78,201,751.32/x
  3. Step 3: Cross multiply
    131,162,394.83x = 180,938,728.40 × 78,201,751.32
  4. Step 4: Simplify right side
    131,162,394.83x = 14,149,725,442,102,812
  5. Step 5: Solve for x
    x = 14,149,725,442,102,812/131,162,394.83
  6. Step 6: Final answer
    x = 107,879,438.01

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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.