Home / 85,848,087.04-128,784,933.12-28,346,432

Finding the Fourth Proportional to 85,848,087.04, 128,784,933.12 and 28,346,432

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Solution

The fourth proportional to 85,848,087.04, 128,784,933.12 and 28,346,432 is: 42,523,875.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,848,087.04 : 128,784,933.12 = 28,346,432 : x
  2. Step 2: Convert to fraction form
    85,848,087.04/128,784,933.12 = 28,346,432/x
  3. Step 3: Cross multiply
    85,848,087.04x = 128,784,933.12 × 28,346,432
  4. Step 4: Simplify right side
    85,848,087.04x = 3,650,593,349,310,628
  5. Step 5: Solve for x
    x = 3,650,593,349,310,628/85,848,087.04
  6. Step 6: Final answer
    x = 42,523,875.31

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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.