Home / 388,135,833-581,863,627.25-145,968,798.12

Finding the Fourth Proportional to 388,135,833, 581,863,627.25 and 145,968,798.12

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Solution

The fourth proportional to 388,135,833, 581,863,627.25 and 145,968,798.12 is: 218,825,285.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,135,833 : 581,863,627.25 = 145,968,798.12 : x
  2. Step 2: Convert to fraction form
    388,135,833/581,863,627.25 = 145,968,798.12/x
  3. Step 3: Cross multiply
    388,135,833x = 581,863,627.25 × 145,968,798.12
  4. Step 4: Simplify right side
    388,135,833x = 84,933,934,339,426,176
  5. Step 5: Solve for x
    x = 84,933,934,339,426,176/388,135,833
  6. Step 6: Final answer
    x = 218,825,285.17

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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.