Home / 738,289,428.10-1,107,434,142.15-618,252,871.30

Finding the Fourth Proportional to 738,289,428.10, 1,107,434,142.15 and 618,252,871.30

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Solution

The fourth proportional to 738,289,428.10, 1,107,434,142.15 and 618,252,871.30 is: 927,379,306.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,289,428.10 : 1,107,434,142.15 = 618,252,871.30 : x
  2. Step 2: Convert to fraction form
    738,289,428.10/1,107,434,142.15 = 618,252,871.30/x
  3. Step 3: Cross multiply
    738,289,428.10x = 1,107,434,142.15 × 618,252,871.30
  4. Step 4: Simplify right side
    738,289,428.10x = 684,674,338,159,889,920
  5. Step 5: Solve for x
    x = 684,674,338,159,889,920/738,289,428.10
  6. Step 6: Final answer
    x = 927,379,306.95

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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.