Home / 85,436,915-128,103,702.60-33,559,415.24

Finding the Fourth Proportional to 85,436,915, 128,103,702.60 and 33,559,415.24

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Solution

The fourth proportional to 85,436,915, 128,103,702.60 and 33,559,415.24 is: 50,318,827.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,436,915 : 128,103,702.60 = 33,559,415.24 : x
  2. Step 2: Convert to fraction form
    85,436,915/128,103,702.60 = 33,559,415.24/x
  3. Step 3: Cross multiply
    85,436,915x = 128,103,702.60 × 33,559,415.24
  4. Step 4: Simplify right side
    85,436,915x = 4,299,085,349,334,867.50
  5. Step 5: Solve for x
    x = 4,299,085,349,334,867.50/85,436,915
  6. Step 6: Final answer
    x = 50,318,827.05

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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.