Home / 647,453,120.40-971,179,680.60-579,428,672.40

Finding the Fourth Proportional to 647,453,120.40, 971,179,680.60 and 579,428,672.40

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Solution

The fourth proportional to 647,453,120.40, 971,179,680.60 and 579,428,672.40 is: 869,143,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,453,120.40 : 971,179,680.60 = 579,428,672.40 : x
  2. Step 2: Convert to fraction form
    647,453,120.40/971,179,680.60 = 579,428,672.40/x
  3. Step 3: Cross multiply
    647,453,120.40x = 971,179,680.60 × 579,428,672.40
  4. Step 4: Simplify right side
    647,453,120.40x = 562,729,352,991,914,048
  5. Step 5: Solve for x
    x = 562,729,352,991,914,048/647,453,120.40
  6. Step 6: Final answer
    x = 869,143,008.60

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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.