Home / 77,711,884.09-107,240,265.53-42,903,942.01

Finding the Fourth Proportional to 77,711,884.09, 107,240,265.53 and 42,903,942.01

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Solution

The fourth proportional to 77,711,884.09, 107,240,265.53 and 42,903,942.01 is: 59,206,261.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,711,884.09 : 107,240,265.53 = 42,903,942.01 : x
  2. Step 2: Convert to fraction form
    77,711,884.09/107,240,265.53 = 42,903,942.01/x
  3. Step 3: Cross multiply
    77,711,884.09x = 107,240,265.53 × 42,903,942.01
  4. Step 4: Simplify right side
    77,711,884.09x = 4,601,030,133,114,391
  5. Step 5: Solve for x
    x = 4,601,030,133,114,391/77,711,884.09
  6. Step 6: Final answer
    x = 59,206,261.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.