Home / 18,688,085.60-28,032,128.40-5,041,205.60

Finding the Fourth Proportional to 18,688,085.60, 28,032,128.40 and 5,041,205.60

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Solution

The fourth proportional to 18,688,085.60, 28,032,128.40 and 5,041,205.60 is: 7,561,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688,085.60 : 28,032,128.40 = 5,041,205.60 : x
  2. Step 2: Convert to fraction form
    18,688,085.60/28,032,128.40 = 5,041,205.60/x
  3. Step 3: Cross multiply
    18,688,085.60x = 28,032,128.40 × 5,041,205.60
  4. Step 4: Simplify right side
    18,688,085.60x = 141,315,722,669,999.03
  5. Step 5: Solve for x
    x = 141,315,722,669,999.03/18,688,085.60
  6. Step 6: Final answer
    x = 7,561,808.40

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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.