Home / 407,173,220.80-610,731,837.60-130,820,401.60

Finding the Fourth Proportional to 407,173,220.80, 610,731,837.60 and 130,820,401.60

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Solution

The fourth proportional to 407,173,220.80, 610,731,837.60 and 130,820,401.60 is: 196,221,608.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,173,220.80 : 610,731,837.60 = 130,820,401.60 : x
  2. Step 2: Convert to fraction form
    407,173,220.80/610,731,837.60 = 130,820,401.60/x
  3. Step 3: Cross multiply
    407,173,220.80x = 610,731,837.60 × 130,820,401.60
  4. Step 4: Simplify right side
    407,173,220.80x = 79,896,184,264,737,984
  5. Step 5: Solve for x
    x = 79,896,184,264,737,984/407,173,220.80
  6. Step 6: Final answer
    x = 196,221,608.36

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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.