Home / 66,856,853.90-100,285,280.85-61,117,291.10

Finding the Fourth Proportional to 66,856,853.90, 100,285,280.85 and 61,117,291.10

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Solution

The fourth proportional to 66,856,853.90, 100,285,280.85 and 61,117,291.10 is: 91,675,936.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,856,853.90 : 100,285,280.85 = 61,117,291.10 : x
  2. Step 2: Convert to fraction form
    66,856,853.90/100,285,280.85 = 61,117,291.10/x
  3. Step 3: Cross multiply
    66,856,853.90x = 100,285,280.85 × 61,117,291.10
  4. Step 4: Simplify right side
    66,856,853.90x = 6,129,164,702,754,705
  5. Step 5: Solve for x
    x = 6,129,164,702,754,705/66,856,853.90
  6. Step 6: Final answer
    x = 91,675,936.65

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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.