Home / 86,932,036.20-130,398,054.30-77,862,109.80

Finding the Fourth Proportional to 86,932,036.20, 130,398,054.30 and 77,862,109.80

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Solution

The fourth proportional to 86,932,036.20, 130,398,054.30 and 77,862,109.80 is: 116,793,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,932,036.20 : 130,398,054.30 = 77,862,109.80 : x
  2. Step 2: Convert to fraction form
    86,932,036.20/130,398,054.30 = 77,862,109.80/x
  3. Step 3: Cross multiply
    86,932,036.20x = 130,398,054.30 × 77,862,109.80
  4. Step 4: Simplify right side
    86,932,036.20x = 10,153,067,621,612,962
  5. Step 5: Solve for x
    x = 10,153,067,621,612,962/86,932,036.20
  6. Step 6: Final answer
    x = 116,793,164.70

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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.