Home / 891,097,885.80-1,336,646,828.70-814,507,396.20

Finding the Fourth Proportional to 891,097,885.80, 1,336,646,828.70 and 814,507,396.20

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Solution

The fourth proportional to 891,097,885.80, 1,336,646,828.70 and 814,507,396.20 is: 1,221,761,094.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,097,885.80 : 1,336,646,828.70 = 814,507,396.20 : x
  2. Step 2: Convert to fraction form
    891,097,885.80/1,336,646,828.70 = 814,507,396.20/x
  3. Step 3: Cross multiply
    891,097,885.80x = 1,336,646,828.70 × 814,507,396.20
  4. Step 4: Simplify right side
    891,097,885.80x = 1,088,708,728,083,424,512
  5. Step 5: Solve for x
    x = 1,088,708,728,083,424,512/891,097,885.80
  6. Step 6: Final answer
    x = 1,221,761,094.30

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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.