Home / 716,417,872.80-1,074,626,809.20-262,489,322.40

Finding the Fourth Proportional to 716,417,872.80, 1,074,626,809.20 and 262,489,322.40

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Solution

The fourth proportional to 716,417,872.80, 1,074,626,809.20 and 262,489,322.40 is: 393,733,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,417,872.80 : 1,074,626,809.20 = 262,489,322.40 : x
  2. Step 2: Convert to fraction form
    716,417,872.80/1,074,626,809.20 = 262,489,322.40/x
  3. Step 3: Cross multiply
    716,417,872.80x = 1,074,626,809.20 × 262,489,322.40
  4. Step 4: Simplify right side
    716,417,872.80x = 282,078,062,979,782,112
  5. Step 5: Solve for x
    x = 282,078,062,979,782,112/716,417,872.80
  6. Step 6: Final answer
    x = 393,733,983.60

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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.