Home / 699,842,912.40-1,049,764,368.60-518,444,384.40

Finding the Fourth Proportional to 699,842,912.40, 1,049,764,368.60 and 518,444,384.40

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Solution

The fourth proportional to 699,842,912.40, 1,049,764,368.60 and 518,444,384.40 is: 777,666,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,842,912.40 : 1,049,764,368.60 = 518,444,384.40 : x
  2. Step 2: Convert to fraction form
    699,842,912.40/1,049,764,368.60 = 518,444,384.40/x
  3. Step 3: Cross multiply
    699,842,912.40x = 1,049,764,368.60 × 518,444,384.40
  4. Step 4: Simplify right side
    699,842,912.40x = 544,244,441,843,881,664
  5. Step 5: Solve for x
    x = 544,244,441,843,881,664/699,842,912.40
  6. Step 6: Final answer
    x = 777,666,576.60

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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.