Home / 85,890,522.83-128,956,853.16-61,616,217.05

Finding the Fourth Proportional to 85,890,522.83, 128,956,853.16 and 61,616,217.05

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Solution

The fourth proportional to 85,890,522.83, 128,956,853.16 and 61,616,217.05 is: 92,511,178.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,890,522.83 : 128,956,853.16 = 61,616,217.05 : x
  2. Step 2: Convert to fraction form
    85,890,522.83/128,956,853.16 = 61,616,217.05/x
  3. Step 3: Cross multiply
    85,890,522.83x = 128,956,853.16 × 61,616,217.05
  4. Step 4: Simplify right side
    85,890,522.83x = 7,945,833,453,746,754
  5. Step 5: Solve for x
    x = 7,945,833,453,746,754/85,890,522.83
  6. Step 6: Final answer
    x = 92,511,178.09

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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.