Home / 144,767,028.80-217,150,543.20-128,894,657.60

Finding the Fourth Proportional to 144,767,028.80, 217,150,543.20 and 128,894,657.60

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Solution

The fourth proportional to 144,767,028.80, 217,150,543.20 and 128,894,657.60 is: 193,341,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,767,028.80 : 217,150,543.20 = 128,894,657.60 : x
  2. Step 2: Convert to fraction form
    144,767,028.80/217,150,543.20 = 128,894,657.60/x
  3. Step 3: Cross multiply
    144,767,028.80x = 217,150,543.20 × 128,894,657.60
  4. Step 4: Simplify right side
    144,767,028.80x = 27,989,544,913,418,004
  5. Step 5: Solve for x
    x = 27,989,544,913,418,004/144,767,028.80
  6. Step 6: Final answer
    x = 193,341,986.40

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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.