Home / 141,993,721.40-212,990,582.10-126,688,220.60

Finding the Fourth Proportional to 141,993,721.40, 212,990,582.10 and 126,688,220.60

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Solution

The fourth proportional to 141,993,721.40, 212,990,582.10 and 126,688,220.60 is: 190,032,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,993,721.40 : 212,990,582.10 = 126,688,220.60 : x
  2. Step 2: Convert to fraction form
    141,993,721.40/212,990,582.10 = 126,688,220.60/x
  3. Step 3: Cross multiply
    141,993,721.40x = 212,990,582.10 × 126,688,220.60
  4. Step 4: Simplify right side
    141,993,721.40x = 26,983,397,850,807,208
  5. Step 5: Solve for x
    x = 26,983,397,850,807,208/141,993,721.40
  6. Step 6: Final answer
    x = 190,032,330.90

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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.