Home / 28,266,201.80-42,399,302.70-18,580,689.60

Finding the Fourth Proportional to 28,266,201.80, 42,399,302.70 and 18,580,689.60

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Solution

The fourth proportional to 28,266,201.80, 42,399,302.70 and 18,580,689.60 is: 27,871,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266,201.80 : 42,399,302.70 = 18,580,689.60 : x
  2. Step 2: Convert to fraction form
    28,266,201.80/42,399,302.70 = 18,580,689.60/x
  3. Step 3: Cross multiply
    28,266,201.80x = 42,399,302.70 × 18,580,689.60
  4. Step 4: Simplify right side
    28,266,201.80x = 787,808,282,725,142
  5. Step 5: Solve for x
    x = 787,808,282,725,142/28,266,201.80
  6. Step 6: Final answer
    x = 27,871,034.40

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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.