Home / 85,550,522.40-128,310,037.20-53,144,431.20

Finding the Fourth Proportional to 85,550,522.40, 128,310,037.20 and 53,144,431.20

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Solution

The fourth proportional to 85,550,522.40, 128,310,037.20 and 53,144,431.20 is: 79,706,865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,550,522.40 : 128,310,037.20 = 53,144,431.20 : x
  2. Step 2: Convert to fraction form
    85,550,522.40/128,310,037.20 = 53,144,431.20/x
  3. Step 3: Cross multiply
    85,550,522.40x = 128,310,037.20 × 53,144,431.20
  4. Step 4: Simplify right side
    85,550,522.40x = 6,818,963,944,244,841
  5. Step 5: Solve for x
    x = 6,818,963,944,244,841/85,550,522.40
  6. Step 6: Final answer
    x = 79,706,865.05

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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.