Home / 839,341,074.80-1,158,270,228.48-462,989,422.32

Finding the Fourth Proportional to 839,341,074.80, 1,158,270,228.48 and 462,989,422.32

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Solution

The fourth proportional to 839,341,074.80, 1,158,270,228.48 and 462,989,422.32 is: 638,914,119.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,341,074.80 : 1,158,270,228.48 = 462,989,422.32 : x
  2. Step 2: Convert to fraction form
    839,341,074.80/1,158,270,228.48 = 462,989,422.32/x
  3. Step 3: Cross multiply
    839,341,074.80x = 1,158,270,228.48 × 462,989,422.32
  4. Step 4: Simplify right side
    839,341,074.80x = 536,266,863,974,409,600
  5. Step 5: Solve for x
    x = 536,266,863,974,409,600/839,341,074.80
  6. Step 6: Final answer
    x = 638,914,119.75

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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.