Home / 872,170,619.76-1,308,436,488.36-354,601,148.40

Finding the Fourth Proportional to 872,170,619.76, 1,308,436,488.36 and 354,601,148.40

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Solution

The fourth proportional to 872,170,619.76, 1,308,436,488.36 and 354,601,148.40 is: 531,975,132.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,170,619.76 : 1,308,436,488.36 = 354,601,148.40 : x
  2. Step 2: Convert to fraction form
    872,170,619.76/1,308,436,488.36 = 354,601,148.40/x
  3. Step 3: Cross multiply
    872,170,619.76x = 1,308,436,488.36 × 354,601,148.40
  4. Step 4: Simplify right side
    872,170,619.76x = 463,973,081,380,919,168
  5. Step 5: Solve for x
    x = 463,973,081,380,919,168/872,170,619.76
  6. Step 6: Final answer
    x = 531,975,132.93

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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.