Home / 28,061,205.60-42,091,808.40-18,487,394.40

Finding the Fourth Proportional to 28,061,205.60, 42,091,808.40 and 18,487,394.40

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Solution

The fourth proportional to 28,061,205.60, 42,091,808.40 and 18,487,394.40 is: 27,731,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,061,205.60 : 42,091,808.40 = 18,487,394.40 : x
  2. Step 2: Convert to fraction form
    28,061,205.60/42,091,808.40 = 18,487,394.40/x
  3. Step 3: Cross multiply
    28,061,205.60x = 42,091,808.40 × 18,487,394.40
  4. Step 4: Simplify right side
    28,061,205.60x = 778,167,862,900,032.88
  5. Step 5: Solve for x
    x = 778,167,862,900,032.88/28,061,205.60
  6. Step 6: Final answer
    x = 27,731,091.60

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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.