Home / 238,862,153,454.72-329,629,759,161.60-128,996,488,938.74

Finding the Fourth Proportional to 238,862,153,454.72, 329,629,759,161.60 and 128,996,488,938.74

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Solution

The fourth proportional to 238,862,153,454.72, 329,629,759,161.60 and 128,996,488,938.74 is: 178,015,147,927.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,862,153,454.72 : 329,629,759,161.60 = 128,996,488,938.74 : x
  2. Step 2: Convert to fraction form
    238,862,153,454.72/329,629,759,161.60 = 128,996,488,938.74/x
  3. Step 3: Cross multiply
    238,862,153,454.72x = 329,629,759,161.60 × 128,996,488,938.74
  4. Step 4: Simplify right side
    238,862,153,454.72x = 42,521,081,581,568,861,929,472
  5. Step 5: Solve for x
    x = 42,521,081,581,568,861,929,472/238,862,153,454.72
  6. Step 6: Final answer
    x = 178,015,147,927.69

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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.