Home / 309,332,075.79-426,880,485.27-168,202,284.90

Finding the Fourth Proportional to 309,332,075.79, 426,880,485.27 and 168,202,284.90

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Solution

The fourth proportional to 309,332,075.79, 426,880,485.27 and 168,202,284.90 is: 232,120,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,332,075.79 : 426,880,485.27 = 168,202,284.90 : x
  2. Step 2: Convert to fraction form
    309,332,075.79/426,880,485.27 = 168,202,284.90/x
  3. Step 3: Cross multiply
    309,332,075.79x = 426,880,485.27 × 168,202,284.90
  4. Step 4: Simplify right side
    309,332,075.79x = 71,802,273,000,033,992
  5. Step 5: Solve for x
    x = 71,802,273,000,033,992/309,332,075.79
  6. Step 6: Final answer
    x = 232,120,360.67

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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.