Home / 81,480,071.80-122,220,107.70-38,433,350.80

Finding the Fourth Proportional to 81,480,071.80, 122,220,107.70 and 38,433,350.80

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Solution

The fourth proportional to 81,480,071.80, 122,220,107.70 and 38,433,350.80 is: 57,650,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,480,071.80 : 122,220,107.70 = 38,433,350.80 : x
  2. Step 2: Convert to fraction form
    81,480,071.80/122,220,107.70 = 38,433,350.80/x
  3. Step 3: Cross multiply
    81,480,071.80x = 122,220,107.70 × 38,433,350.80
  4. Step 4: Simplify right side
    81,480,071.80x = 4,697,328,274,047,881
  5. Step 5: Solve for x
    x = 4,697,328,274,047,881/81,480,071.80
  6. Step 6: Final answer
    x = 57,650,026.20

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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.