Home / 151,317,216-208,817,991.36-86,127,120

Finding the Fourth Proportional to 151,317,216, 208,817,991.36 and 86,127,120

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Solution

The fourth proportional to 151,317,216, 208,817,991.36 and 86,127,120 is: 118,855,558.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,317,216 : 208,817,991.36 = 86,127,120 : x
  2. Step 2: Convert to fraction form
    151,317,216/208,817,991.36 = 86,127,120/x
  3. Step 3: Cross multiply
    151,317,216x = 208,817,991.36 × 86,127,120
  4. Step 4: Simplify right side
    151,317,216x = 17,984,892,200,021,684
  5. Step 5: Solve for x
    x = 17,984,892,200,021,684/151,317,216
  6. Step 6: Final answer
    x = 118,855,558.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.