Home / 786,978,017.80-1,180,467,026.70-552,293,672.20

Finding the Fourth Proportional to 786,978,017.80, 1,180,467,026.70 and 552,293,672.20

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Solution

The fourth proportional to 786,978,017.80, 1,180,467,026.70 and 552,293,672.20 is: 828,440,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,978,017.80 : 1,180,467,026.70 = 552,293,672.20 : x
  2. Step 2: Convert to fraction form
    786,978,017.80/1,180,467,026.70 = 552,293,672.20/x
  3. Step 3: Cross multiply
    786,978,017.80x = 1,180,467,026.70 × 552,293,672.20
  4. Step 4: Simplify right side
    786,978,017.80x = 651,964,469,087,158,528
  5. Step 5: Solve for x
    x = 651,964,469,087,158,528/786,978,017.80
  6. Step 6: Final answer
    x = 828,440,508.30

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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.