Home / 15,087,975,068.90-20,820,467,438.45-8,313,414,537.74

Finding the Fourth Proportional to 15,087,975,068.90, 20,820,467,438.45 and 8,313,414,537.74

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Solution

The fourth proportional to 15,087,975,068.90, 20,820,467,438.45 and 8,313,414,537.74 is: 11,471,995,141.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,087,975,068.90 : 20,820,467,438.45 = 8,313,414,537.74 : x
  2. Step 2: Convert to fraction form
    15,087,975,068.90/20,820,467,438.45 = 8,313,414,537.74/x
  3. Step 3: Cross multiply
    15,087,975,068.90x = 20,820,467,438.45 × 8,313,414,537.74
  4. Step 4: Simplify right side
    15,087,975,068.90x = 173,089,176,685,240,123,392
  5. Step 5: Solve for x
    x = 173,089,176,685,240,123,392/15,087,975,068.90
  6. Step 6: Final answer
    x = 11,471,995,141.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.