Home / 238,862,149,880.86-329,629,754,227.74-128,996,485,366.02

Finding the Fourth Proportional to 238,862,149,880.86, 329,629,754,227.74 and 128,996,485,366.02

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Solution

The fourth proportional to 238,862,149,880.86, 329,629,754,227.74 and 128,996,485,366.02 is: 178,015,142,996.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,862,149,880.86 : 329,629,754,227.74 = 128,996,485,366.02 : x
  2. Step 2: Convert to fraction form
    238,862,149,880.86/329,629,754,227.74 = 128,996,485,366.02/x
  3. Step 3: Cross multiply
    238,862,149,880.86x = 329,629,754,227.74 × 128,996,485,366.02
  4. Step 4: Simplify right side
    238,862,149,880.86x = 42,521,079,767,443,429,130,240
  5. Step 5: Solve for x
    x = 42,521,079,767,443,429,130,240/238,862,149,880.86
  6. Step 6: Final answer
    x = 178,015,142,996.29

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1.5x scale

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.