Home / 12,839,335,867.68-19,249,290,765.84-8,418,868,153.76

Finding the Fourth Proportional to 12,839,335,867.68, 19,249,290,765.84 and 8,418,868,153.76

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Solution

The fourth proportional to 12,839,335,867.68, 19,249,290,765.84 and 8,418,868,153.76 is: 12,621,933,305.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839,335,867.68 : 19,249,290,765.84 = 8,418,868,153.76 : x
  2. Step 2: Convert to fraction form
    12,839,335,867.68/19,249,290,765.84 = 8,418,868,153.76/x
  3. Step 3: Cross multiply
    12,839,335,867.68x = 19,249,290,765.84 × 8,418,868,153.76
  4. Step 4: Simplify right side
    12,839,335,867.68x = 162,057,241,010,996,838,400
  5. Step 5: Solve for x
    x = 162,057,241,010,996,838,400/12,839,335,867.68
  6. Step 6: Final answer
    x = 12,621,933,305.67

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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.