Home / 139,716,627.45-209,343,252.02-84,963,588.81

Finding the Fourth Proportional to 139,716,627.45, 209,343,252.02 and 84,963,588.81

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Solution

The fourth proportional to 139,716,627.45, 209,343,252.02 and 84,963,588.81 is: 127,304,489.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,716,627.45 : 209,343,252.02 = 84,963,588.81 : x
  2. Step 2: Convert to fraction form
    139,716,627.45/209,343,252.02 = 84,963,588.81/x
  3. Step 3: Cross multiply
    139,716,627.45x = 209,343,252.02 × 84,963,588.81
  4. Step 4: Simplify right side
    139,716,627.45x = 17,786,553,984,350,664
  5. Step 5: Solve for x
    x = 17,786,553,984,350,664/139,716,627.45
  6. Step 6: Final answer
    x = 127,304,489.87

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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.