Home / 839,341,054.45-1,158,270,200.42-462,989,401.99

Finding the Fourth Proportional to 839,341,054.45, 1,158,270,200.42 and 462,989,401.99

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Solution

The fourth proportional to 839,341,054.45, 1,158,270,200.42 and 462,989,401.99 is: 638,914,091.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,341,054.45 : 1,158,270,200.42 = 462,989,401.99 : x
  2. Step 2: Convert to fraction form
    839,341,054.45/1,158,270,200.42 = 462,989,401.99/x
  3. Step 3: Cross multiply
    839,341,054.45x = 1,158,270,200.42 × 462,989,401.99
  4. Step 4: Simplify right side
    839,341,054.45x = 536,266,827,433,555,008
  5. Step 5: Solve for x
    x = 536,266,827,433,555,008/839,341,054.45
  6. Step 6: Final answer
    x = 638,914,091.71

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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.