Home / 112,354,997.80-168,658,467.90-86,908,815.40

Finding the Fourth Proportional to 112,354,997.80, 168,658,467.90 and 86,908,815.40

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Solution

The fourth proportional to 112,354,997.80, 168,658,467.90 and 86,908,815.40 is: 130,460,664.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,354,997.80 : 168,658,467.90 = 86,908,815.40 : x
  2. Step 2: Convert to fraction form
    112,354,997.80/168,658,467.90 = 86,908,815.40/x
  3. Step 3: Cross multiply
    112,354,997.80x = 168,658,467.90 × 86,908,815.40
  4. Step 4: Simplify right side
    112,354,997.80x = 14,657,907,652,367,928
  5. Step 5: Solve for x
    x = 14,657,907,652,367,928/112,354,997.80
  6. Step 6: Final answer
    x = 130,460,664.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.