Home / 1,328,864,029.60-1,993,296,044.40-784,668,445.60

Finding the Fourth Proportional to 1,328,864,029.60, 1,993,296,044.40 and 784,668,445.60

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Solution

The fourth proportional to 1,328,864,029.60, 1,993,296,044.40 and 784,668,445.60 is: 1,177,002,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,864,029.60 : 1,993,296,044.40 = 784,668,445.60 : x
  2. Step 2: Convert to fraction form
    1,328,864,029.60/1,993,296,044.40 = 784,668,445.60/x
  3. Step 3: Cross multiply
    1,328,864,029.60x = 1,993,296,044.40 × 784,668,445.60
  4. Step 4: Simplify right side
    1,328,864,029.60x = 1,564,076,508,779,976,704
  5. Step 5: Solve for x
    x = 1,564,076,508,779,976,704/1,328,864,029.60
  6. Step 6: Final answer
    x = 1,177,002,668.40

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Double scale
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Similar ratio
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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.