Home / 72,666,812.40-108,876,828.60-43,852,401.60

Finding the Fourth Proportional to 72,666,812.40, 108,876,828.60 and 43,852,401.60

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Solution

The fourth proportional to 72,666,812.40, 108,876,828.60 and 43,852,401.60 is: 65,704,139.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,666,812.40 : 108,876,828.60 = 43,852,401.60 : x
  2. Step 2: Convert to fraction form
    72,666,812.40/108,876,828.60 = 43,852,401.60/x
  3. Step 3: Cross multiply
    72,666,812.40x = 108,876,828.60 × 43,852,401.60
  4. Step 4: Simplify right side
    72,666,812.40x = 4,774,510,412,701,566
  5. Step 5: Solve for x
    x = 4,774,510,412,701,566/72,666,812.40
  6. Step 6: Final answer
    x = 65,704,139.96

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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.