Home / 127,661,712.60-191,492,568.90-76,005,647.40

Finding the Fourth Proportional to 127,661,712.60, 191,492,568.90 and 76,005,647.40

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Solution

The fourth proportional to 127,661,712.60, 191,492,568.90 and 76,005,647.40 is: 114,008,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,661,712.60 : 191,492,568.90 = 76,005,647.40 : x
  2. Step 2: Convert to fraction form
    127,661,712.60/191,492,568.90 = 76,005,647.40/x
  3. Step 3: Cross multiply
    127,661,712.60x = 191,492,568.90 × 76,005,647.40
  4. Step 4: Simplify right side
    127,661,712.60x = 14,554,516,671,533,608
  5. Step 5: Solve for x
    x = 14,554,516,671,533,608/127,661,712.60
  6. Step 6: Final answer
    x = 114,008,471.10

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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.