Home / 144,828,205.80-217,242,308.70-128,955,834.60

Finding the Fourth Proportional to 144,828,205.80, 217,242,308.70 and 128,955,834.60

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Solution

The fourth proportional to 144,828,205.80, 217,242,308.70 and 128,955,834.60 is: 193,433,751.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,828,205.80 : 217,242,308.70 = 128,955,834.60 : x
  2. Step 2: Convert to fraction form
    144,828,205.80/217,242,308.70 = 128,955,834.60/x
  3. Step 3: Cross multiply
    144,828,205.80x = 217,242,308.70 × 128,955,834.60
  4. Step 4: Simplify right side
    144,828,205.80x = 28,014,663,228,839,340
  5. Step 5: Solve for x
    x = 28,014,663,228,839,340/144,828,205.80
  6. Step 6: Final answer
    x = 193,433,751.90

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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.