Home / 127,692,051.60-191,538,077.40-76,673,715.60

Finding the Fourth Proportional to 127,692,051.60, 191,538,077.40 and 76,673,715.60

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Solution

The fourth proportional to 127,692,051.60, 191,538,077.40 and 76,673,715.60 is: 115,010,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,692,051.60 : 191,538,077.40 = 76,673,715.60 : x
  2. Step 2: Convert to fraction form
    127,692,051.60/191,538,077.40 = 76,673,715.60/x
  3. Step 3: Cross multiply
    127,692,051.60x = 191,538,077.40 × 76,673,715.60
  4. Step 4: Simplify right side
    127,692,051.60x = 14,685,936,073,138,386
  5. Step 5: Solve for x
    x = 14,685,936,073,138,386/127,692,051.60
  6. Step 6: Final answer
    x = 115,010,573.40

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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.