Home / 780,031,206.40-1,170,046,809.60-262,289,574.40

Finding the Fourth Proportional to 780,031,206.40, 1,170,046,809.60 and 262,289,574.40

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Solution

The fourth proportional to 780,031,206.40, 1,170,046,809.60 and 262,289,574.40 is: 393,434,361.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,031,206.40 : 1,170,046,809.60 = 262,289,574.40 : x
  2. Step 2: Convert to fraction form
    780,031,206.40/1,170,046,809.60 = 262,289,574.40/x
  3. Step 3: Cross multiply
    780,031,206.40x = 1,170,046,809.60 × 262,289,574.40
  4. Step 4: Simplify right side
    780,031,206.40x = 306,891,079,718,061,824
  5. Step 5: Solve for x
    x = 306,891,079,718,061,824/780,031,206.40
  6. Step 6: Final answer
    x = 393,434,361.60

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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.