Home / 81,389,113.20-122,083,669.80-59,706,320.40

Finding the Fourth Proportional to 81,389,113.20, 122,083,669.80 and 59,706,320.40

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Solution

The fourth proportional to 81,389,113.20, 122,083,669.80 and 59,706,320.40 is: 89,559,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,389,113.20 : 122,083,669.80 = 59,706,320.40 : x
  2. Step 2: Convert to fraction form
    81,389,113.20/122,083,669.80 = 59,706,320.40/x
  3. Step 3: Cross multiply
    81,389,113.20x = 122,083,669.80 × 59,706,320.40
  4. Step 4: Simplify right side
    81,389,113.20x = 7,289,166,704,686,604
  5. Step 5: Solve for x
    x = 7,289,166,704,686,604/81,389,113.20
  6. Step 6: Final answer
    x = 89,559,480.60

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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.