Home / 171,088,013.60-256,632,020.40-78,971,573.60

Finding the Fourth Proportional to 171,088,013.60, 256,632,020.40 and 78,971,573.60

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Solution

The fourth proportional to 171,088,013.60, 256,632,020.40 and 78,971,573.60 is: 118,457,360.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,088,013.60 : 256,632,020.40 = 78,971,573.60 : x
  2. Step 2: Convert to fraction form
    171,088,013.60/256,632,020.40 = 78,971,573.60/x
  3. Step 3: Cross multiply
    171,088,013.60x = 256,632,020.40 × 78,971,573.60
  4. Step 4: Simplify right side
    171,088,013.60x = 20,266,634,487,135,300
  5. Step 5: Solve for x
    x = 20,266,634,487,135,300/171,088,013.60
  6. Step 6: Final answer
    x = 118,457,360.40

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1.5x scale

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.