Home / 255,011,389,870.20-351,915,851,615.54-139,269,734,004.12

Finding the Fourth Proportional to 255,011,389,870.20, 351,915,851,615.54 and 139,269,734,004.12

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Solution

The fourth proportional to 255,011,389,870.20, 351,915,851,615.54 and 139,269,734,004.12 is: 192,192,305,885.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,011,389,870.20 : 351,915,851,615.54 = 139,269,734,004.12 : x
  2. Step 2: Convert to fraction form
    255,011,389,870.20/351,915,851,615.54 = 139,269,734,004.12/x
  3. Step 3: Cross multiply
    255,011,389,870.20x = 351,915,851,615.54 × 139,269,734,004.12
  4. Step 4: Simplify right side
    255,011,389,870.20x = 49,011,227,046,329,611,976,704
  5. Step 5: Solve for x
    x = 49,011,227,046,329,611,976,704/255,011,389,870.20
  6. Step 6: Final answer
    x = 192,192,305,885.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.