Home / 85,235,972.55-117,657,628.70-55,869,196.47

Finding the Fourth Proportional to 85,235,972.55, 117,657,628.70 and 55,869,196.47

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Solution

The fourth proportional to 85,235,972.55, 117,657,628.70 and 55,869,196.47 is: 77,120,457.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,235,972.55 : 117,657,628.70 = 55,869,196.47 : x
  2. Step 2: Convert to fraction form
    85,235,972.55/117,657,628.70 = 55,869,196.47/x
  3. Step 3: Cross multiply
    85,235,972.55x = 117,657,628.70 × 55,869,196.47
  4. Step 4: Simplify right side
    85,235,972.55x = 6,573,437,173,755,264
  5. Step 5: Solve for x
    x = 6,573,437,173,755,264/85,235,972.55
  6. Step 6: Final answer
    x = 77,120,457.21

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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.