Home / 28,675,087.40-43,012,631.10-28,476,021.80

Finding the Fourth Proportional to 28,675,087.40, 43,012,631.10 and 28,476,021.80

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Solution

The fourth proportional to 28,675,087.40, 43,012,631.10 and 28,476,021.80 is: 42,714,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,675,087.40 : 43,012,631.10 = 28,476,021.80 : x
  2. Step 2: Convert to fraction form
    28,675,087.40/43,012,631.10 = 28,476,021.80/x
  3. Step 3: Cross multiply
    28,675,087.40x = 43,012,631.10 × 28,476,021.80
  4. Step 4: Simplify right side
    28,675,087.40x = 1,224,828,620,878,958
  5. Step 5: Solve for x
    x = 1,224,828,620,878,958/28,675,087.40
  6. Step 6: Final answer
    x = 42,714,032.70

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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.