Home / 142,677,639.40-196,899,989.04-136,139,918.80

Finding the Fourth Proportional to 142,677,639.40, 196,899,989.04 and 136,139,918.80

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Solution

The fourth proportional to 142,677,639.40, 196,899,989.04 and 136,139,918.80 is: 187,877,712.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,677,639.40 : 196,899,989.04 = 136,139,918.80 : x
  2. Step 2: Convert to fraction form
    142,677,639.40/196,899,989.04 = 136,139,918.80/x
  3. Step 3: Cross multiply
    142,677,639.40x = 196,899,989.04 × 136,139,918.80
  4. Step 4: Simplify right side
    142,677,639.40x = 26,805,948,519,626,492
  5. Step 5: Solve for x
    x = 26,805,948,519,626,492/142,677,639.40
  6. Step 6: Final answer
    x = 187,877,712.53

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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.