Home / 13,289,111.20-19,933,666.80-7,242,493.60

Finding the Fourth Proportional to 13,289,111.20, 19,933,666.80 and 7,242,493.60

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Solution

The fourth proportional to 13,289,111.20, 19,933,666.80 and 7,242,493.60 is: 10,863,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289,111.20 : 19,933,666.80 = 7,242,493.60 : x
  2. Step 2: Convert to fraction form
    13,289,111.20/19,933,666.80 = 7,242,493.60/x
  3. Step 3: Cross multiply
    13,289,111.20x = 19,933,666.80 × 7,242,493.60
  4. Step 4: Simplify right side
    13,289,111.20x = 144,369,454,223,532.47
  5. Step 5: Solve for x
    x = 144,369,454,223,532.47/13,289,111.20
  6. Step 6: Final answer
    x = 10,863,740.40

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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.