Home / 28,061,211.60-42,091,817.40-18,487,400.40

Finding the Fourth Proportional to 28,061,211.60, 42,091,817.40 and 18,487,400.40

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Solution

The fourth proportional to 28,061,211.60, 42,091,817.40 and 18,487,400.40 is: 27,731,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,061,211.60 : 42,091,817.40 = 18,487,400.40 : x
  2. Step 2: Convert to fraction form
    28,061,211.60/42,091,817.40 = 18,487,400.40/x
  3. Step 3: Cross multiply
    28,061,211.60x = 42,091,817.40 × 18,487,400.40
  4. Step 4: Simplify right side
    28,061,211.60x = 778,168,281,837,486.88
  5. Step 5: Solve for x
    x = 778,168,281,837,486.88/28,061,211.60
  6. Step 6: Final answer
    x = 27,731,100.60

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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.