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Finding the Fourth Proportional to 85,489,467, 128,234,200.50 and 37,620,411

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Solution

The fourth proportional to 85,489,467, 128,234,200.50 and 37,620,411 is: 56,430,616.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,489,467 : 128,234,200.50 = 37,620,411 : x
  2. Step 2: Convert to fraction form
    85,489,467/128,234,200.50 = 37,620,411/x
  3. Step 3: Cross multiply
    85,489,467x = 128,234,200.50 × 37,620,411
  4. Step 4: Simplify right side
    85,489,467x = 4,824,223,327,066,406
  5. Step 5: Solve for x
    x = 4,824,223,327,066,406/85,489,467
  6. Step 6: Final answer
    x = 56,430,616.50

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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.