Home / 12,140,928,247.60-18,211,392,371.40-9,385,938,103.60

Finding the Fourth Proportional to 12,140,928,247.60, 18,211,392,371.40 and 9,385,938,103.60

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Solution

The fourth proportional to 12,140,928,247.60, 18,211,392,371.40 and 9,385,938,103.60 is: 14,078,907,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140,928,247.60 : 18,211,392,371.40 = 9,385,938,103.60 : x
  2. Step 2: Convert to fraction form
    12,140,928,247.60/18,211,392,371.40 = 9,385,938,103.60/x
  3. Step 3: Cross multiply
    12,140,928,247.60x = 18,211,392,371.40 × 9,385,938,103.60
  4. Step 4: Simplify right side
    12,140,928,247.60x = 170,931,001,578,333,634,560
  5. Step 5: Solve for x
    x = 170,931,001,578,333,634,560/12,140,928,247.60
  6. Step 6: Final answer
    x = 14,078,907,155.40

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Double scale
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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.