Home / 476,928,019.80-715,392,029.70-259,249,786.20

Finding the Fourth Proportional to 476,928,019.80, 715,392,029.70 and 259,249,786.20

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Solution

The fourth proportional to 476,928,019.80, 715,392,029.70 and 259,249,786.20 is: 388,874,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,928,019.80 : 715,392,029.70 = 259,249,786.20 : x
  2. Step 2: Convert to fraction form
    476,928,019.80/715,392,029.70 = 259,249,786.20/x
  3. Step 3: Cross multiply
    476,928,019.80x = 715,392,029.70 × 259,249,786.20
  4. Step 4: Simplify right side
    476,928,019.80x = 185,465,230,748,909,056
  5. Step 5: Solve for x
    x = 185,465,230,748,909,056/476,928,019.80
  6. Step 6: Final answer
    x = 388,874,679.30

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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.