Home / 434,405,637.60-651,608,456.40-127,728,751.20

Finding the Fourth Proportional to 434,405,637.60, 651,608,456.40 and 127,728,751.20

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Solution

The fourth proportional to 434,405,637.60, 651,608,456.40 and 127,728,751.20 is: 191,593,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,405,637.60 : 651,608,456.40 = 127,728,751.20 : x
  2. Step 2: Convert to fraction form
    434,405,637.60/651,608,456.40 = 127,728,751.20/x
  3. Step 3: Cross multiply
    434,405,637.60x = 651,608,456.40 × 127,728,751.20
  4. Step 4: Simplify right side
    434,405,637.60x = 83,229,134,407,331,648
  5. Step 5: Solve for x
    x = 83,229,134,407,331,648/434,405,637.60
  6. Step 6: Final answer
    x = 191,593,126.80

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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.