Home / 677,318,643.40-1,015,977,965.10-217,303,313.80

Finding the Fourth Proportional to 677,318,643.40, 1,015,977,965.10 and 217,303,313.80

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Solution

The fourth proportional to 677,318,643.40, 1,015,977,965.10 and 217,303,313.80 is: 325,954,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,318,643.40 : 1,015,977,965.10 = 217,303,313.80 : x
  2. Step 2: Convert to fraction form
    677,318,643.40/1,015,977,965.10 = 217,303,313.80/x
  3. Step 3: Cross multiply
    677,318,643.40x = 1,015,977,965.10 × 217,303,313.80
  4. Step 4: Simplify right side
    677,318,643.40x = 220,775,378,564,010,752
  5. Step 5: Solve for x
    x = 220,775,378,564,010,752/677,318,643.40
  6. Step 6: Final answer
    x = 325,954,970.70

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1.5x scale

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.