Home / 13,110,012,421.20-19,665,018,631.80-12,892,334,187.60

Finding the Fourth Proportional to 13,110,012,421.20, 19,665,018,631.80 and 12,892,334,187.60

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Solution

The fourth proportional to 13,110,012,421.20, 19,665,018,631.80 and 12,892,334,187.60 is: 19,338,501,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110,012,421.20 : 19,665,018,631.80 = 12,892,334,187.60 : x
  2. Step 2: Convert to fraction form
    13,110,012,421.20/19,665,018,631.80 = 12,892,334,187.60/x
  3. Step 3: Cross multiply
    13,110,012,421.20x = 19,665,018,631.80 × 12,892,334,187.60
  4. Step 4: Simplify right side
    13,110,012,421.20x = 253,527,992,006,546,128,896
  5. Step 5: Solve for x
    x = 253,527,992,006,546,128,896/13,110,012,421.20
  6. Step 6: Final answer
    x = 19,338,501,281.40

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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.