Home / 78,894,628.60-118,285,955.70-30,353,726.20

Finding the Fourth Proportional to 78,894,628.60, 118,285,955.70 and 30,353,726.20

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Solution

The fourth proportional to 78,894,628.60, 118,285,955.70 and 30,353,726.20 is: 45,509,048.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894,628.60 : 118,285,955.70 = 30,353,726.20 : x
  2. Step 2: Convert to fraction form
    78,894,628.60/118,285,955.70 = 30,353,726.20/x
  3. Step 3: Cross multiply
    78,894,628.60x = 118,285,955.70 × 30,353,726.20
  4. Step 4: Simplify right side
    78,894,628.60x = 3,590,419,512,623,129.50
  5. Step 5: Solve for x
    x = 3,590,419,512,623,129.50/78,894,628.60
  6. Step 6: Final answer
    x = 45,509,048.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.