Home / 127,021,201,972.09-190,475,891,834.28-67,315,875,832.87

Finding the Fourth Proportional to 127,021,201,972.09, 190,475,891,834.28 and 67,315,875,832.87

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Solution

The fourth proportional to 127,021,201,972.09, 190,475,891,834.28 and 67,315,875,832.87 is: 100,944,183,213.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,021,201,972.09 : 190,475,891,834.28 = 67,315,875,832.87 : x
  2. Step 2: Convert to fraction form
    127,021,201,972.09/190,475,891,834.28 = 67,315,875,832.87/x
  3. Step 3: Cross multiply
    127,021,201,972.09x = 190,475,891,834.28 × 67,315,875,832.87
  4. Step 4: Simplify right side
    127,021,201,972.09x = 12,822,051,483,871,568,986,112
  5. Step 5: Solve for x
    x = 12,822,051,483,871,568,986,112/127,021,201,972.09
  6. Step 6: Final answer
    x = 100,944,183,213.52

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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.