Home / 872,372,917.98-1,203,872,975.52-475,895,802.78

Finding the Fourth Proportional to 872,372,917.98, 1,203,872,975.52 and 475,895,802.78

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Solution

The fourth proportional to 872,372,917.98, 1,203,872,975.52 and 475,895,802.78 is: 656,735,307.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,372,917.98 : 1,203,872,975.52 = 475,895,802.78 : x
  2. Step 2: Convert to fraction form
    872,372,917.98/1,203,872,975.52 = 475,895,802.78/x
  3. Step 3: Cross multiply
    872,372,917.98x = 1,203,872,975.52 × 475,895,802.78
  4. Step 4: Simplify right side
    872,372,917.98x = 572,918,096,130,237,632
  5. Step 5: Solve for x
    x = 572,918,096,130,237,632/872,372,917.98
  6. Step 6: Final answer
    x = 656,735,307.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.