Home / 78,313,140,484-108,072,149,418.64-42,670,455,494.56

Finding the Fourth Proportional to 78,313,140,484, 108,072,149,418.64 and 42,670,455,494.56

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Solution

The fourth proportional to 78,313,140,484, 108,072,149,418.64 and 42,670,455,494.56 is: 58,885,237,055.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,313,140,484 : 108,072,149,418.64 = 42,670,455,494.56 : x
  2. Step 2: Convert to fraction form
    78,313,140,484/108,072,149,418.64 = 42,670,455,494.56/x
  3. Step 3: Cross multiply
    78,313,140,484x = 108,072,149,418.64 × 42,670,455,494.56
  4. Step 4: Simplify right side
    78,313,140,484x = 4,611,487,841,969,516,314,624
  5. Step 5: Solve for x
    x = 4,611,487,841,969,516,314,624/78,313,140,484
  6. Step 6: Final answer
    x = 58,885,237,055.61

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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.