Home / 127,872,003.60-191,808,005.40-76,811,677.20

Finding the Fourth Proportional to 127,872,003.60, 191,808,005.40 and 76,811,677.20

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Solution

The fourth proportional to 127,872,003.60, 191,808,005.40 and 76,811,677.20 is: 115,217,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,872,003.60 : 191,808,005.40 = 76,811,677.20 : x
  2. Step 2: Convert to fraction form
    127,872,003.60/191,808,005.40 = 76,811,677.20/x
  3. Step 3: Cross multiply
    127,872,003.60x = 191,808,005.40 × 76,811,677.20
  4. Step 4: Simplify right side
    127,872,003.60x = 14,733,094,595,160,658
  5. Step 5: Solve for x
    x = 14,733,094,595,160,658/127,872,003.60
  6. Step 6: Final answer
    x = 115,217,515.80

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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.