Home / 78,286,591,136.19-117,381,828,079.20-30,423,714,943.11

Finding the Fourth Proportional to 78,286,591,136.19, 117,381,828,079.20 and 30,423,714,943.11

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Solution

The fourth proportional to 78,286,591,136.19, 117,381,828,079.20 and 30,423,714,943.11 is: 45,616,895,884.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,286,591,136.19 : 117,381,828,079.20 = 30,423,714,943.11 : x
  2. Step 2: Convert to fraction form
    78,286,591,136.19/117,381,828,079.20 = 30,423,714,943.11/x
  3. Step 3: Cross multiply
    78,286,591,136.19x = 117,381,828,079.20 × 30,423,714,943.11
  4. Step 4: Simplify right side
    78,286,591,136.19x = 3,571,191,276,982,725,771,264
  5. Step 5: Solve for x
    x = 3,571,191,276,982,725,771,264/78,286,591,136.19
  6. Step 6: Final answer
    x = 45,616,895,884.13

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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.