Home / 128,000,065.75-192,024,317.10-40,583,600.35

Finding the Fourth Proportional to 128,000,065.75, 192,024,317.10 and 40,583,600.35

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Solution

The fourth proportional to 128,000,065.75, 192,024,317.10 and 40,583,600.35 is: 60,883,079.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,000,065.75 : 192,024,317.10 = 40,583,600.35 : x
  2. Step 2: Convert to fraction form
    128,000,065.75/192,024,317.10 = 40,583,600.35/x
  3. Step 3: Cross multiply
    128,000,065.75x = 192,024,317.10 × 40,583,600.35
  4. Step 4: Simplify right side
    128,000,065.75x = 7,793,038,142,668,071
  5. Step 5: Solve for x
    x = 7,793,038,142,668,071/128,000,065.75
  6. Step 6: Final answer
    x = 60,883,079.22

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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.