Home / 127,483,677.60-191,225,516.40-81,567,175.20

Finding the Fourth Proportional to 127,483,677.60, 191,225,516.40 and 81,567,175.20

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Solution

The fourth proportional to 127,483,677.60, 191,225,516.40 and 81,567,175.20 is: 122,350,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,483,677.60 : 191,225,516.40 = 81,567,175.20 : x
  2. Step 2: Convert to fraction form
    127,483,677.60/191,225,516.40 = 81,567,175.20/x
  3. Step 3: Cross multiply
    127,483,677.60x = 191,225,516.40 × 81,567,175.20
  4. Step 4: Simplify right side
    127,483,677.60x = 15,597,725,198,909,274
  5. Step 5: Solve for x
    x = 15,597,725,198,909,274/127,483,677.60
  6. Step 6: Final answer
    x = 122,350,762.80

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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.