Home / 12,620,801.80-18,931,202.70-4,101,999.40

Finding the Fourth Proportional to 12,620,801.80, 18,931,202.70 and 4,101,999.40

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Solution

The fourth proportional to 12,620,801.80, 18,931,202.70 and 4,101,999.40 is: 6,152,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620,801.80 : 18,931,202.70 = 4,101,999.40 : x
  2. Step 2: Convert to fraction form
    12,620,801.80/18,931,202.70 = 4,101,999.40/x
  3. Step 3: Cross multiply
    12,620,801.80x = 18,931,202.70 × 4,101,999.40
  4. Step 4: Simplify right side
    12,620,801.80x = 77,655,782,116,678.38
  5. Step 5: Solve for x
    x = 77,655,782,116,678.38/12,620,801.80
  6. Step 6: Final answer
    x = 6,152,999.10

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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.