Home / 191,786,999.60-287,722,489.80-76,742,634.80

Finding the Fourth Proportional to 191,786,999.60, 287,722,489.80 and 76,742,634.80

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Solution

The fourth proportional to 191,786,999.60, 287,722,489.80 and 76,742,634.80 is: 115,130,754.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,786,999.60 : 287,722,489.80 = 76,742,634.80 : x
  2. Step 2: Convert to fraction form
    191,786,999.60/287,722,489.80 = 76,742,634.80/x
  3. Step 3: Cross multiply
    191,786,999.60x = 287,722,489.80 × 76,742,634.80
  4. Step 4: Simplify right side
    191,786,999.60x = 22,080,581,958,468,124
  5. Step 5: Solve for x
    x = 22,080,581,958,468,124/191,786,999.60
  6. Step 6: Final answer
    x = 115,130,754.45

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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.