Home / 430,952,675.61-646,519,800.66-139,797,064.29

Finding the Fourth Proportional to 430,952,675.61, 646,519,800.66 and 139,797,064.29

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Solution

The fourth proportional to 430,952,675.61, 646,519,800.66 and 139,797,064.29 is: 209,725,046.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,952,675.61 : 646,519,800.66 = 139,797,064.29 : x
  2. Step 2: Convert to fraction form
    430,952,675.61/646,519,800.66 = 139,797,064.29/x
  3. Step 3: Cross multiply
    430,952,675.61x = 646,519,800.66 × 139,797,064.29
  4. Step 4: Simplify right side
    430,952,675.61x = 90,381,570,137,624,000
  5. Step 5: Solve for x
    x = 90,381,570,137,624,000/430,952,675.61
  6. Step 6: Final answer
    x = 209,725,046.98

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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.