Home / 1,215,226,728.72-1,677,011,370.48-658,312,077.60

Finding the Fourth Proportional to 1,215,226,728.72, 1,677,011,370.48 and 658,312,077.60

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Solution

The fourth proportional to 1,215,226,728.72, 1,677,011,370.48 and 658,312,077.60 is: 908,469,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,226,728.72 : 1,677,011,370.48 = 658,312,077.60 : x
  2. Step 2: Convert to fraction form
    1,215,226,728.72/1,677,011,370.48 = 658,312,077.60/x
  3. Step 3: Cross multiply
    1,215,226,728.72x = 1,677,011,370.48 × 658,312,077.60
  4. Step 4: Simplify right side
    1,215,226,728.72x = 1,103,996,839,459,512,192
  5. Step 5: Solve for x
    x = 1,103,996,839,459,512,192/1,215,226,728.72
  6. Step 6: Final answer
    x = 908,469,846.30

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Double scale
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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.