Home / 61,687,056.50-85,166,844.42-39,698,768.96

Finding the Fourth Proportional to 61,687,056.50, 85,166,844.42 and 39,698,768.96

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Solution

The fourth proportional to 61,687,056.50, 85,166,844.42 and 39,698,768.96 is: 54,809,210.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,687,056.50 : 85,166,844.42 = 39,698,768.96 : x
  2. Step 2: Convert to fraction form
    61,687,056.50/85,166,844.42 = 39,698,768.96/x
  3. Step 3: Cross multiply
    61,687,056.50x = 85,166,844.42 × 39,698,768.96
  4. Step 4: Simplify right side
    61,687,056.50x = 3,381,018,879,256,011
  5. Step 5: Solve for x
    x = 3,381,018,879,256,011/61,687,056.50
  6. Step 6: Final answer
    x = 54,809,210.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.