Home / 439,912,986.60-660,574,503.90-349,786,036.20

Finding the Fourth Proportional to 439,912,986.60, 660,574,503.90 and 349,786,036.20

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Solution

The fourth proportional to 439,912,986.60, 660,574,503.90 and 349,786,036.20 is: 525,239,636.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,912,986.60 : 660,574,503.90 = 349,786,036.20 : x
  2. Step 2: Convert to fraction form
    439,912,986.60/660,574,503.90 = 349,786,036.20/x
  3. Step 3: Cross multiply
    439,912,986.60x = 660,574,503.90 × 349,786,036.20
  4. Step 4: Simplify right side
    439,912,986.60x = 231,059,737,333,962,432
  5. Step 5: Solve for x
    x = 231,059,737,333,962,432/439,912,986.60
  6. Step 6: Final answer
    x = 525,239,636.86

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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.