Home / 104,913,909.84-144,821,076.48-78,884,015.52

Finding the Fourth Proportional to 104,913,909.84, 144,821,076.48 and 78,884,015.52

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Solution

The fourth proportional to 104,913,909.84, 144,821,076.48 and 78,884,015.52 is: 108,889,927.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,913,909.84 : 144,821,076.48 = 78,884,015.52 : x
  2. Step 2: Convert to fraction form
    104,913,909.84/144,821,076.48 = 78,884,015.52/x
  3. Step 3: Cross multiply
    104,913,909.84x = 144,821,076.48 × 78,884,015.52
  4. Step 4: Simplify right side
    104,913,909.84x = 11,424,068,044,671,426
  5. Step 5: Solve for x
    x = 11,424,068,044,671,426/104,913,909.84
  6. Step 6: Final answer
    x = 108,889,927.58

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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.