Home / 85,762,044.77-128,632,430.42-50,767,981.70

Finding the Fourth Proportional to 85,762,044.77, 128,632,430.42 and 50,767,981.70

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Solution

The fourth proportional to 85,762,044.77, 128,632,430.42 and 50,767,981.70 is: 76,145,675.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,762,044.77 : 128,632,430.42 = 50,767,981.70 : x
  2. Step 2: Convert to fraction form
    85,762,044.77/128,632,430.42 = 50,767,981.70/x
  3. Step 3: Cross multiply
    85,762,044.77x = 128,632,430.42 × 50,767,981.70
  4. Step 4: Simplify right side
    85,762,044.77x = 6,530,408,872,692,082
  5. Step 5: Solve for x
    x = 6,530,408,872,692,082/85,762,044.77
  6. Step 6: Final answer
    x = 76,145,675.99

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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.