Home / 351,939,367.40-528,098,007.90-147,488,109.80

Finding the Fourth Proportional to 351,939,367.40, 528,098,007.90 and 147,488,109.80

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Solution

The fourth proportional to 351,939,367.40, 528,098,007.90 and 147,488,109.80 is: 221,311,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,939,367.40 : 528,098,007.90 = 147,488,109.80 : x
  2. Step 2: Convert to fraction form
    351,939,367.40/528,098,007.90 = 147,488,109.80/x
  3. Step 3: Cross multiply
    351,939,367.40x = 528,098,007.90 × 147,488,109.80
  4. Step 4: Simplify right side
    351,939,367.40x = 77,888,176,974,316,464
  5. Step 5: Solve for x
    x = 77,888,176,974,316,464/351,939,367.40
  6. Step 6: Final answer
    x = 221,311,351.30

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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.