Home / 780,031,193.40-1,170,046,790.10-262,289,561.40

Finding the Fourth Proportional to 780,031,193.40, 1,170,046,790.10 and 262,289,561.40

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Solution

The fourth proportional to 780,031,193.40, 1,170,046,790.10 and 262,289,561.40 is: 393,434,342.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,031,193.40 : 1,170,046,790.10 = 262,289,561.40 : x
  2. Step 2: Convert to fraction form
    780,031,193.40/1,170,046,790.10 = 262,289,561.40/x
  3. Step 3: Cross multiply
    780,031,193.40x = 1,170,046,790.10 × 262,289,561.40
  4. Step 4: Simplify right side
    780,031,193.40x = 306,891,059,392,806,848
  5. Step 5: Solve for x
    x = 306,891,059,392,806,848/780,031,193.40
  6. Step 6: Final answer
    x = 393,434,342.10

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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.