Home / 127,939,506.40-191,909,259.60-126,026,318.80

Finding the Fourth Proportional to 127,939,506.40, 191,909,259.60 and 126,026,318.80

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Solution

The fourth proportional to 127,939,506.40, 191,909,259.60 and 126,026,318.80 is: 189,039,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,939,506.40 : 191,909,259.60 = 126,026,318.80 : x
  2. Step 2: Convert to fraction form
    127,939,506.40/191,909,259.60 = 126,026,318.80/x
  3. Step 3: Cross multiply
    127,939,506.40x = 191,909,259.60 × 126,026,318.80
  4. Step 4: Simplify right side
    127,939,506.40x = 24,185,617,531,021,560
  5. Step 5: Solve for x
    x = 24,185,617,531,021,560/127,939,506.40
  6. Step 6: Final answer
    x = 189,039,478.20

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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.