Home / 18,688,356.40-28,037,783.40-9,104,047.60

Finding the Fourth Proportional to 18,688,356.40, 28,037,783.40 and 9,104,047.60

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Solution

The fourth proportional to 18,688,356.40, 28,037,783.40 and 9,104,047.60 is: 13,658,628.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688,356.40 : 28,037,783.40 = 9,104,047.60 : x
  2. Step 2: Convert to fraction form
    18,688,356.40/28,037,783.40 = 9,104,047.60/x
  3. Step 3: Cross multiply
    18,688,356.40x = 28,037,783.40 × 9,104,047.60
  4. Step 4: Simplify right side
    18,688,356.40x = 255,257,314,672,089.81
  5. Step 5: Solve for x
    x = 255,257,314,672,089.81/18,688,356.40
  6. Step 6: Final answer
    x = 13,658,628.36

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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.