Home / 118,098,889.80-177,148,334.70-85,574,700.60

Finding the Fourth Proportional to 118,098,889.80, 177,148,334.70 and 85,574,700.60

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Solution

The fourth proportional to 118,098,889.80, 177,148,334.70 and 85,574,700.60 is: 128,362,050.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,098,889.80 : 177,148,334.70 = 85,574,700.60 : x
  2. Step 2: Convert to fraction form
    118,098,889.80/177,148,334.70 = 85,574,700.60/x
  3. Step 3: Cross multiply
    118,098,889.80x = 177,148,334.70 × 85,574,700.60
  4. Step 4: Simplify right side
    118,098,889.80x = 15,159,415,703,741,088
  5. Step 5: Solve for x
    x = 15,159,415,703,741,088/118,098,889.80
  6. Step 6: Final answer
    x = 128,362,050.90

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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.