Home / 839,341,070.80-1,158,270,222.96-462,989,418.32

Finding the Fourth Proportional to 839,341,070.80, 1,158,270,222.96 and 462,989,418.32

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Solution

The fourth proportional to 839,341,070.80, 1,158,270,222.96 and 462,989,418.32 is: 638,914,114.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,341,070.80 : 1,158,270,222.96 = 462,989,418.32 : x
  2. Step 2: Convert to fraction form
    839,341,070.80/1,158,270,222.96 = 462,989,418.32/x
  3. Step 3: Cross multiply
    839,341,070.80x = 1,158,270,222.96 × 462,989,418.32
  4. Step 4: Simplify right side
    839,341,070.80x = 536,266,856,785,627,136
  5. Step 5: Solve for x
    x = 536,266,856,785,627,136/839,341,070.80
  6. Step 6: Final answer
    x = 638,914,114.23

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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.