Home / 112,014,939.60-168,022,409.40-105,212,494.80

Finding the Fourth Proportional to 112,014,939.60, 168,022,409.40 and 105,212,494.80

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Solution

The fourth proportional to 112,014,939.60, 168,022,409.40 and 105,212,494.80 is: 157,818,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,014,939.60 : 168,022,409.40 = 105,212,494.80 : x
  2. Step 2: Convert to fraction form
    112,014,939.60/168,022,409.40 = 105,212,494.80/x
  3. Step 3: Cross multiply
    112,014,939.60x = 168,022,409.40 × 105,212,494.80
  4. Step 4: Simplify right side
    112,014,939.60x = 17,678,056,875,280,972
  5. Step 5: Solve for x
    x = 17,678,056,875,280,972/112,014,939.60
  6. Step 6: Final answer
    x = 157,818,742.20

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1.5x scale

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.