Home / 393,984,602.10-590,976,903.15-388,609,830.90

Finding the Fourth Proportional to 393,984,602.10, 590,976,903.15 and 388,609,830.90

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Solution

The fourth proportional to 393,984,602.10, 590,976,903.15 and 388,609,830.90 is: 582,914,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,984,602.10 : 590,976,903.15 = 388,609,830.90 : x
  2. Step 2: Convert to fraction form
    393,984,602.10/590,976,903.15 = 388,609,830.90/x
  3. Step 3: Cross multiply
    393,984,602.10x = 590,976,903.15 × 388,609,830.90
  4. Step 4: Simplify right side
    393,984,602.10x = 229,659,434,398,927,168
  5. Step 5: Solve for x
    x = 229,659,434,398,927,168/393,984,602.10
  6. Step 6: Final answer
    x = 582,914,746.35

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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.