Home / 28,054,381.60-42,081,572.40-18,480,570.40

Finding the Fourth Proportional to 28,054,381.60, 42,081,572.40 and 18,480,570.40

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Solution

The fourth proportional to 28,054,381.60, 42,081,572.40 and 18,480,570.40 is: 27,720,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054,381.60 : 42,081,572.40 = 18,480,570.40 : x
  2. Step 2: Convert to fraction form
    28,054,381.60/42,081,572.40 = 18,480,570.40/x
  3. Step 3: Cross multiply
    28,054,381.60x = 42,081,572.40 × 18,480,570.40
  4. Step 4: Simplify right side
    28,054,381.60x = 777,691,461,280,896.88
  5. Step 5: Solve for x
    x = 777,691,461,280,896.88/28,054,381.60
  6. Step 6: Final answer
    x = 27,720,855.60

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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.