Home / 838,970,977.44-1,258,506,910.11-256,710,267.51

Finding the Fourth Proportional to 838,970,977.44, 1,258,506,910.11 and 256,710,267.51

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Solution

The fourth proportional to 838,970,977.44, 1,258,506,910.11 and 256,710,267.51 is: 385,080,836.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,970,977.44 : 1,258,506,910.11 = 256,710,267.51 : x
  2. Step 2: Convert to fraction form
    838,970,977.44/1,258,506,910.11 = 256,710,267.51/x
  3. Step 3: Cross multiply
    838,970,977.44x = 1,258,506,910.11 × 256,710,267.51
  4. Step 4: Simplify right side
    838,970,977.44x = 323,071,645,551,229,056
  5. Step 5: Solve for x
    x = 323,071,645,551,229,056/838,970,977.44
  6. Step 6: Final answer
    x = 385,080,836.22

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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.