Home / 144,828,492.80-217,242,739.20-128,956,121.60

Finding the Fourth Proportional to 144,828,492.80, 217,242,739.20 and 128,956,121.60

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Solution

The fourth proportional to 144,828,492.80, 217,242,739.20 and 128,956,121.60 is: 193,434,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,828,492.80 : 217,242,739.20 = 128,956,121.60 : x
  2. Step 2: Convert to fraction form
    144,828,492.80/217,242,739.20 = 128,956,121.60/x
  3. Step 3: Cross multiply
    144,828,492.80x = 217,242,739.20 × 128,956,121.60
  4. Step 4: Simplify right side
    144,828,492.80x = 28,014,781,092,992,284
  5. Step 5: Solve for x
    x = 28,014,781,092,992,284/144,828,492.80
  6. Step 6: Final answer
    x = 193,434,182.40

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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.