Home / 808,664,884.71-1,215,130,280.76-435,448,706.49

Finding the Fourth Proportional to 808,664,884.71, 1,215,130,280.76 and 435,448,706.49

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Solution

The fourth proportional to 808,664,884.71, 1,215,130,280.76 and 435,448,706.49 is: 654,321,609.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,664,884.71 : 1,215,130,280.76 = 435,448,706.49 : x
  2. Step 2: Convert to fraction form
    808,664,884.71/1,215,130,280.76 = 435,448,706.49/x
  3. Step 3: Cross multiply
    808,664,884.71x = 1,215,130,280.76 × 435,448,706.49
  4. Step 4: Simplify right side
    808,664,884.71x = 529,126,908,973,772,544
  5. Step 5: Solve for x
    x = 529,126,908,973,772,544/808,664,884.71
  6. Step 6: Final answer
    x = 654,321,609.58

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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.