Home / 28,528,254.40-42,792,381.60-18,912,452.80

Finding the Fourth Proportional to 28,528,254.40, 42,792,381.60 and 18,912,452.80

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Solution

The fourth proportional to 28,528,254.40, 42,792,381.60 and 18,912,452.80 is: 28,368,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528,254.40 : 42,792,381.60 = 18,912,452.80 : x
  2. Step 2: Convert to fraction form
    28,528,254.40/42,792,381.60 = 18,912,452.80/x
  3. Step 3: Cross multiply
    28,528,254.40x = 42,792,381.60 × 18,912,452.80
  4. Step 4: Simplify right side
    28,528,254.40x = 809,308,897,209,588.50
  5. Step 5: Solve for x
    x = 809,308,897,209,588.50/28,528,254.40
  6. Step 6: Final answer
    x = 28,368,679.20

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1.5x scale

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.