Home / 70,104,420.72-105,159,878.78-21,584,447.91

Finding the Fourth Proportional to 70,104,420.72, 105,159,878.78 and 21,584,447.91

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Solution

The fourth proportional to 70,104,420.72, 105,159,878.78 and 21,584,447.91 is: 32,377,671.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,104,420.72 : 105,159,878.78 = 21,584,447.91 : x
  2. Step 2: Convert to fraction form
    70,104,420.72/105,159,878.78 = 21,584,447.91/x
  3. Step 3: Cross multiply
    70,104,420.72x = 105,159,878.78 × 21,584,447.91
  4. Step 4: Simplify right side
    70,104,420.72x = 2,269,817,925,640,902.50
  5. Step 5: Solve for x
    x = 2,269,817,925,640,902.50/70,104,420.72
  6. Step 6: Final answer
    x = 32,377,671.80

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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.