Home / 761,728,179.32-1,051,299,792.78-464,542,834.04

Finding the Fourth Proportional to 761,728,179.32, 1,051,299,792.78 and 464,542,834.04

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Solution

The fourth proportional to 761,728,179.32, 1,051,299,792.78 and 464,542,834.04 is: 641,139,186.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,728,179.32 : 1,051,299,792.78 = 464,542,834.04 : x
  2. Step 2: Convert to fraction form
    761,728,179.32/1,051,299,792.78 = 464,542,834.04/x
  3. Step 3: Cross multiply
    761,728,179.32x = 1,051,299,792.78 × 464,542,834.04
  4. Step 4: Simplify right side
    761,728,179.32x = 488,373,785,163,685,952
  5. Step 5: Solve for x
    x = 488,373,785,163,685,952/761,728,179.32
  6. Step 6: Final answer
    x = 641,139,186.42

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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.