Home / 66,548,047.80-99,822,071.70-18,678,991.80

Finding the Fourth Proportional to 66,548,047.80, 99,822,071.70 and 18,678,991.80

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Solution

The fourth proportional to 66,548,047.80, 99,822,071.70 and 18,678,991.80 is: 28,018,487.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,548,047.80 : 99,822,071.70 = 18,678,991.80 : x
  2. Step 2: Convert to fraction form
    66,548,047.80/99,822,071.70 = 18,678,991.80/x
  3. Step 3: Cross multiply
    66,548,047.80x = 99,822,071.70 × 18,678,991.80
  4. Step 4: Simplify right side
    66,548,047.80x = 1,864,575,658,743,312.25
  5. Step 5: Solve for x
    x = 1,864,575,658,743,312.25/66,548,047.80
  6. Step 6: Final answer
    x = 28,018,487.70

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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.