Home / 973,986,850.30-1,345,218,885.18-640,946,165.30

Finding the Fourth Proportional to 973,986,850.30, 1,345,218,885.18 and 640,946,165.30

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Solution

The fourth proportional to 973,986,850.30, 1,345,218,885.18 and 640,946,165.30 is: 885,240,787.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    973,986,850.30 : 1,345,218,885.18 = 640,946,165.30 : x
  2. Step 2: Convert to fraction form
    973,986,850.30/1,345,218,885.18 = 640,946,165.30/x
  3. Step 3: Cross multiply
    973,986,850.30x = 1,345,218,885.18 × 640,946,165.30
  4. Step 4: Simplify right side
    973,986,850.30x = 862,212,885,945,261,952
  5. Step 5: Solve for x
    x = 862,212,885,945,261,952/973,986,850.30
  6. Step 6: Final answer
    x = 885,240,787.06

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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.