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Finding the Fourth Proportional to 12,321,868,859.40, 18,482,803,289.10 and 12,321,868,859.40

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Solution

The fourth proportional to 12,321,868,859.40, 18,482,803,289.10 and 12,321,868,859.40 is: 18,482,803,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321,868,859.40 : 18,482,803,289.10 = 12,321,868,859.40 : x
  2. Step 2: Convert to fraction form
    12,321,868,859.40/18,482,803,289.10 = 12,321,868,859.40/x
  3. Step 3: Cross multiply
    12,321,868,859.40x = 18,482,803,289.10 × 12,321,868,859.40
  4. Step 4: Simplify right side
    12,321,868,859.40x = 227,742,678,282,377,166,848
  5. Step 5: Solve for x
    x = 227,742,678,282,377,166,848/12,321,868,859.40
  6. Step 6: Final answer
    x = 18,482,803,289.10

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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.