Home / 28,408,174,194.86-39,203,384,250.78-15,372,356,926.89

Finding the Fourth Proportional to 28,408,174,194.86, 39,203,384,250.78 and 15,372,356,926.89

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Solution

The fourth proportional to 28,408,174,194.86, 39,203,384,250.78 and 15,372,356,926.89 is: 21,213,908,761.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408,174,194.86 : 39,203,384,250.78 = 15,372,356,926.89 : x
  2. Step 2: Convert to fraction form
    28,408,174,194.86/39,203,384,250.78 = 15,372,356,926.89/x
  3. Step 3: Cross multiply
    28,408,174,194.86x = 39,203,384,250.78 × 15,372,356,926.89
  4. Step 4: Simplify right side
    28,408,174,194.86x = 602,648,415,444,812,300,288
  5. Step 5: Solve for x
    x = 602,648,415,444,812,300,288/28,408,174,194.86
  6. Step 6: Final answer
    x = 21,213,908,761.30

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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.