Home / 86,270,094,996.80-129,405,142,495.20-72,338,688,046.40

Finding the Fourth Proportional to 86,270,094,996.80, 129,405,142,495.20 and 72,338,688,046.40

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Solution

The fourth proportional to 86,270,094,996.80, 129,405,142,495.20 and 72,338,688,046.40 is: 108,508,032,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,270,094,996.80 : 129,405,142,495.20 = 72,338,688,046.40 : x
  2. Step 2: Convert to fraction form
    86,270,094,996.80/129,405,142,495.20 = 72,338,688,046.40/x
  3. Step 3: Cross multiply
    86,270,094,996.80x = 129,405,142,495.20 × 72,338,688,046.40
  4. Step 4: Simplify right side
    86,270,094,996.80x = 9,360,998,234,560,211,714,048
  5. Step 5: Solve for x
    x = 9,360,998,234,560,211,714,048/86,270,094,996.80
  6. Step 6: Final answer
    x = 108,508,032,069.60

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1.5x scale

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.