Home / 13,909,602.82-20,849,678.35-4,678,787.79

Finding the Fourth Proportional to 13,909,602.82, 20,849,678.35 and 4,678,787.79

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Solution

The fourth proportional to 13,909,602.82, 20,849,678.35 and 4,678,787.79 is: 7,013,228.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909,602.82 : 20,849,678.35 = 4,678,787.79 : x
  2. Step 2: Convert to fraction form
    13,909,602.82/20,849,678.35 = 4,678,787.79/x
  3. Step 3: Cross multiply
    13,909,602.82x = 20,849,678.35 × 4,678,787.79
  4. Step 4: Simplify right side
    13,909,602.82x = 97,551,220,361,765.02
  5. Step 5: Solve for x
    x = 97,551,220,361,765.02/13,909,602.82
  6. Step 6: Final answer
    x = 7,013,228.32

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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.