Home / 85,542,153.60-128,313,230.40-28,020,554.40

Finding the Fourth Proportional to 85,542,153.60, 128,313,230.40 and 28,020,554.40

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Solution

The fourth proportional to 85,542,153.60, 128,313,230.40 and 28,020,554.40 is: 42,030,831.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,542,153.60 : 128,313,230.40 = 28,020,554.40 : x
  2. Step 2: Convert to fraction form
    85,542,153.60/128,313,230.40 = 28,020,554.40/x
  3. Step 3: Cross multiply
    85,542,153.60x = 128,313,230.40 × 28,020,554.40
  4. Step 4: Simplify right side
    85,542,153.60x = 3,595,407,852,662,933.50
  5. Step 5: Solve for x
    x = 3,595,407,852,662,933.50/85,542,153.60
  6. Step 6: Final answer
    x = 42,030,831.60

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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.