Home / 30,189,348,519.20-45,284,022,778.80-8,108,612,698.40

Finding the Fourth Proportional to 30,189,348,519.20, 45,284,022,778.80 and 8,108,612,698.40

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Solution

The fourth proportional to 30,189,348,519.20, 45,284,022,778.80 and 8,108,612,698.40 is: 12,162,919,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,189,348,519.20 : 45,284,022,778.80 = 8,108,612,698.40 : x
  2. Step 2: Convert to fraction form
    30,189,348,519.20/45,284,022,778.80 = 8,108,612,698.40/x
  3. Step 3: Cross multiply
    30,189,348,519.20x = 45,284,022,778.80 × 8,108,612,698.40
  4. Step 4: Simplify right side
    30,189,348,519.20x = 367,190,602,138,812,547,072
  5. Step 5: Solve for x
    x = 367,190,602,138,812,547,072/30,189,348,519.20
  6. Step 6: Final answer
    x = 12,162,919,047.60

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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.