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Finding the Fourth Proportional to 1,256,584,615.04, 1,885,005,642.24 and 480,882,684.80

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Solution

The fourth proportional to 1,256,584,615.04, 1,885,005,642.24 and 480,882,684.80 is: 721,373,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,584,615.04 : 1,885,005,642.24 = 480,882,684.80 : x
  2. Step 2: Convert to fraction form
    1,256,584,615.04/1,885,005,642.24 = 480,882,684.80/x
  3. Step 3: Cross multiply
    1,256,584,615.04x = 1,885,005,642.24 × 480,882,684.80
  4. Step 4: Simplify right side
    1,256,584,615.04x = 906,466,574,103,519,488
  5. Step 5: Solve for x
    x = 906,466,574,103,519,488/1,256,584,615.04
  6. Step 6: Final answer
    x = 721,373,286.97

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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.