Home / 130,604,840.80-195,683,312.40-85,143,234.40

Finding the Fourth Proportional to 130,604,840.80, 195,683,312.40 and 85,143,234.40

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Solution

The fourth proportional to 130,604,840.80, 195,683,312.40 and 85,143,234.40 is: 127,568,856.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,604,840.80 : 195,683,312.40 = 85,143,234.40 : x
  2. Step 2: Convert to fraction form
    130,604,840.80/195,683,312.40 = 85,143,234.40/x
  3. Step 3: Cross multiply
    130,604,840.80x = 195,683,312.40 × 85,143,234.40
  4. Step 4: Simplify right side
    130,604,840.80x = 16,661,110,135,841,628
  5. Step 5: Solve for x
    x = 16,661,110,135,841,628/130,604,840.80
  6. Step 6: Final answer
    x = 127,568,856.05

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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.