Home / 420,712,699.80-631,100,770.32-125,584,506.24

Finding the Fourth Proportional to 420,712,699.80, 631,100,770.32 and 125,584,506.24

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Solution

The fourth proportional to 420,712,699.80, 631,100,770.32 and 125,584,506.24 is: 188,386,228.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,712,699.80 : 631,100,770.32 = 125,584,506.24 : x
  2. Step 2: Convert to fraction form
    420,712,699.80/631,100,770.32 = 125,584,506.24/x
  3. Step 3: Cross multiply
    420,712,699.80x = 631,100,770.32 × 125,584,506.24
  4. Step 4: Simplify right side
    420,712,699.80x = 79,256,478,628,320,848
  5. Step 5: Solve for x
    x = 79,256,478,628,320,848/420,712,699.80
  6. Step 6: Final answer
    x = 188,386,228.10

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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.