Home / 351,939,368.90-528,098,010.15-147,488,111.30

Finding the Fourth Proportional to 351,939,368.90, 528,098,010.15 and 147,488,111.30

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Solution

The fourth proportional to 351,939,368.90, 528,098,010.15 and 147,488,111.30 is: 221,311,353.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,939,368.90 : 528,098,010.15 = 147,488,111.30 : x
  2. Step 2: Convert to fraction form
    351,939,368.90/528,098,010.15 = 147,488,111.30/x
  3. Step 3: Cross multiply
    351,939,368.90x = 528,098,010.15 × 147,488,111.30
  4. Step 4: Simplify right side
    351,939,368.90x = 77,888,178,098,311,728
  5. Step 5: Solve for x
    x = 77,888,178,098,311,728/351,939,368.90
  6. Step 6: Final answer
    x = 221,311,353.55

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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.