Home / 549,234,970.20-757,223,028.45-396,343,185.57

Finding the Fourth Proportional to 549,234,970.20, 757,223,028.45 and 396,343,185.57

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Solution

The fourth proportional to 549,234,970.20, 757,223,028.45 and 396,343,185.57 is: 546,433,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,234,970.20 : 757,223,028.45 = 396,343,185.57 : x
  2. Step 2: Convert to fraction form
    549,234,970.20/757,223,028.45 = 396,343,185.57/x
  3. Step 3: Cross multiply
    549,234,970.20x = 757,223,028.45 × 396,343,185.57
  4. Step 4: Simplify right side
    549,234,970.20x = 300,120,187,282,835,776
  5. Step 5: Solve for x
    x = 300,120,187,282,835,776/549,234,970.20
  6. Step 6: Final answer
    x = 546,433,136.21

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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.