Home / 78,313,139,784.48-108,072,148,455.36-42,670,454,796.48

Finding the Fourth Proportional to 78,313,139,784.48, 108,072,148,455.36 and 42,670,454,796.48

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Solution

The fourth proportional to 78,313,139,784.48, 108,072,148,455.36 and 42,670,454,796.48 is: 58,885,236,093.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,313,139,784.48 : 108,072,148,455.36 = 42,670,454,796.48 : x
  2. Step 2: Convert to fraction form
    78,313,139,784.48/108,072,148,455.36 = 42,670,454,796.48/x
  3. Step 3: Cross multiply
    78,313,139,784.48x = 108,072,148,455.36 × 42,670,454,796.48
  4. Step 4: Simplify right side
    78,313,139,784.48x = 4,611,487,725,422,915,354,624
  5. Step 5: Solve for x
    x = 4,611,487,725,422,915,354,624/78,313,139,784.48
  6. Step 6: Final answer
    x = 58,885,236,093.38

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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.