Home / 410,112,012.80-615,168,019.20-383,039,091.20

Finding the Fourth Proportional to 410,112,012.80, 615,168,019.20 and 383,039,091.20

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Solution

The fourth proportional to 410,112,012.80, 615,168,019.20 and 383,039,091.20 is: 574,558,636.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,112,012.80 : 615,168,019.20 = 383,039,091.20 : x
  2. Step 2: Convert to fraction form
    410,112,012.80/615,168,019.20 = 383,039,091.20/x
  3. Step 3: Cross multiply
    410,112,012.80x = 615,168,019.20 × 383,039,091.20
  4. Step 4: Simplify right side
    410,112,012.80x = 235,633,399,009,672,160
  5. Step 5: Solve for x
    x = 235,633,399,009,672,160/410,112,012.80
  6. Step 6: Final answer
    x = 574,558,636.80

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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.