Home / 672,912,074.40-1,009,504,580.40-381,918,602.40

Finding the Fourth Proportional to 672,912,074.40, 1,009,504,580.40 and 381,918,602.40

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Solution

The fourth proportional to 672,912,074.40, 1,009,504,580.40 and 381,918,602.40 is: 572,955,357.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,912,074.40 : 1,009,504,580.40 = 381,918,602.40 : x
  2. Step 2: Convert to fraction form
    672,912,074.40/1,009,504,580.40 = 381,918,602.40/x
  3. Step 3: Cross multiply
    672,912,074.40x = 1,009,504,580.40 × 381,918,602.40
  4. Step 4: Simplify right side
    672,912,074.40x = 385,548,578,462,766,400
  5. Step 5: Solve for x
    x = 385,548,578,462,766,400/672,912,074.40
  6. Step 6: Final answer
    x = 572,955,357.96

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1.5x scale

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.