Home / 929,232,180.70-1,392,168,655.05-540,736,999.90

Finding the Fourth Proportional to 929,232,180.70, 1,392,168,655.05 and 540,736,999.90

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Solution

The fourth proportional to 929,232,180.70, 1,392,168,655.05 and 540,736,999.90 is: 810,128,100.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,232,180.70 : 1,392,168,655.05 = 540,736,999.90 : x
  2. Step 2: Convert to fraction form
    929,232,180.70/1,392,168,655.05 = 540,736,999.90/x
  3. Step 3: Cross multiply
    929,232,180.70x = 1,392,168,655.05 × 540,736,999.90
  4. Step 4: Simplify right side
    929,232,180.70x = 752,797,101,886,554,880
  5. Step 5: Solve for x
    x = 752,797,101,886,554,880/929,232,180.70
  6. Step 6: Final answer
    x = 810,128,100.94

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1.5x scale

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.