Home / 12,528,086.60-18,792,129.90-9,339,440.60

Finding the Fourth Proportional to 12,528,086.60, 18,792,129.90 and 9,339,440.60

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Solution

The fourth proportional to 12,528,086.60, 18,792,129.90 and 9,339,440.60 is: 14,009,160.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,086.60 : 18,792,129.90 = 9,339,440.60 : x
  2. Step 2: Convert to fraction form
    12,528,086.60/18,792,129.90 = 9,339,440.60/x
  3. Step 3: Cross multiply
    12,528,086.60x = 18,792,129.90 × 9,339,440.60
  4. Step 4: Simplify right side
    12,528,086.60x = 175,507,980,948,533.91
  5. Step 5: Solve for x
    x = 175,507,980,948,533.91/12,528,086.60
  6. Step 6: Final answer
    x = 14,009,160.90

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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.