Home / 147,905,205.30-221,432,655.15-90,509,577.30

Finding the Fourth Proportional to 147,905,205.30, 221,432,655.15 and 90,509,577.30

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Solution

The fourth proportional to 147,905,205.30, 221,432,655.15 and 90,509,577.30 is: 135,504,196.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,905,205.30 : 221,432,655.15 = 90,509,577.30 : x
  2. Step 2: Convert to fraction form
    147,905,205.30/221,432,655.15 = 90,509,577.30/x
  3. Step 3: Cross multiply
    147,905,205.30x = 221,432,655.15 × 90,509,577.30
  4. Step 4: Simplify right side
    147,905,205.30x = 20,041,776,018,043,168
  5. Step 5: Solve for x
    x = 20,041,776,018,043,168/147,905,205.30
  6. Step 6: Final answer
    x = 135,504,196.61

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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.