Home / 85,164,037.80-127,746,056.70-74,078,572.20

Finding the Fourth Proportional to 85,164,037.80, 127,746,056.70 and 74,078,572.20

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Solution

The fourth proportional to 85,164,037.80, 127,746,056.70 and 74,078,572.20 is: 111,117,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,164,037.80 : 127,746,056.70 = 74,078,572.20 : x
  2. Step 2: Convert to fraction form
    85,164,037.80/127,746,056.70 = 74,078,572.20/x
  3. Step 3: Cross multiply
    85,164,037.80x = 127,746,056.70 × 74,078,572.20
  4. Step 4: Simplify right side
    85,164,037.80x = 9,463,245,484,516,244
  5. Step 5: Solve for x
    x = 9,463,245,484,516,244/85,164,037.80
  6. Step 6: Final answer
    x = 111,117,858.30

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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.