Home / 418,119,021.21-627,044,260.95-137,936,953.64

Finding the Fourth Proportional to 418,119,021.21, 627,044,260.95 and 137,936,953.64

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Solution

The fourth proportional to 418,119,021.21, 627,044,260.95 and 137,936,953.64 is: 206,861,134.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,119,021.21 : 627,044,260.95 = 137,936,953.64 : x
  2. Step 2: Convert to fraction form
    418,119,021.21/627,044,260.95 = 137,936,953.64/x
  3. Step 3: Cross multiply
    418,119,021.21x = 627,044,260.95 × 137,936,953.64
  4. Step 4: Simplify right side
    418,119,021.21x = 86,492,575,152,888,208
  5. Step 5: Solve for x
    x = 86,492,575,152,888,208/418,119,021.21
  6. Step 6: Final answer
    x = 206,861,134.67

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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.