Home / 993,732,542.40-1,490,669,672.40-303,638,689.20

Finding the Fourth Proportional to 993,732,542.40, 1,490,669,672.40 and 303,638,689.20

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Solution

The fourth proportional to 993,732,542.40, 1,490,669,672.40 and 303,638,689.20 is: 455,479,684.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,732,542.40 : 1,490,669,672.40 = 303,638,689.20 : x
  2. Step 2: Convert to fraction form
    993,732,542.40/1,490,669,672.40 = 303,638,689.20/x
  3. Step 3: Cross multiply
    993,732,542.40x = 1,490,669,672.40 × 303,638,689.20
  4. Step 4: Simplify right side
    993,732,542.40x = 452,624,985,357,729,408
  5. Step 5: Solve for x
    x = 452,624,985,357,729,408/993,732,542.40
  6. Step 6: Final answer
    x = 455,479,684.97

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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.