Home / 78,286,591,047.48-117,381,827,946.38-30,423,714,854.37

Finding the Fourth Proportional to 78,286,591,047.48, 117,381,827,946.38 and 30,423,714,854.37

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Solution

The fourth proportional to 78,286,591,047.48, 117,381,827,946.38 and 30,423,714,854.37 is: 45,616,895,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,286,591,047.48 : 117,381,827,946.38 = 30,423,714,854.37 : x
  2. Step 2: Convert to fraction form
    78,286,591,047.48/117,381,827,946.38 = 30,423,714,854.37/x
  3. Step 3: Cross multiply
    78,286,591,047.48x = 117,381,827,946.38 × 30,423,714,854.37
  4. Step 4: Simplify right side
    78,286,591,047.48x = 3,571,191,262,525,385,080,832
  5. Step 5: Solve for x
    x = 3,571,191,262,525,385,080,832/78,286,591,047.48
  6. Step 6: Final answer
    x = 45,616,895,751.14

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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.