Home / 18,886,890,001.96-28,340,139,841.08-7,702,969,248.64

Finding the Fourth Proportional to 18,886,890,001.96, 28,340,139,841.08 and 7,702,969,248.64

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Solution

The fourth proportional to 18,886,890,001.96, 28,340,139,841.08 and 7,702,969,248.64 is: 11,558,452,750.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886,890,001.96 : 28,340,139,841.08 = 7,702,969,248.64 : x
  2. Step 2: Convert to fraction form
    18,886,890,001.96/28,340,139,841.08 = 7,702,969,248.64/x
  3. Step 3: Cross multiply
    18,886,890,001.96x = 28,340,139,841.08 × 7,702,969,248.64
  4. Step 4: Simplify right side
    18,886,890,001.96x = 218,303,225,697,986,347,008
  5. Step 5: Solve for x
    x = 218,303,225,697,986,347,008/18,886,890,001.96
  6. Step 6: Final answer
    x = 11,558,452,750.84

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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.