Home / 86,933,999.95-130,400,999.93-80,364,835.15

Finding the Fourth Proportional to 86,933,999.95, 130,400,999.93 and 80,364,835.15

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Solution

The fourth proportional to 86,933,999.95, 130,400,999.93 and 80,364,835.15 is: 120,547,252.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,933,999.95 : 130,400,999.93 = 80,364,835.15 : x
  2. Step 2: Convert to fraction form
    86,933,999.95/130,400,999.93 = 80,364,835.15/x
  3. Step 3: Cross multiply
    86,933,999.95x = 130,400,999.93 × 80,364,835.15
  4. Step 4: Simplify right side
    86,933,999.95x = 10,479,654,862,367,788
  5. Step 5: Solve for x
    x = 10,479,654,862,367,788/86,933,999.95
  6. Step 6: Final answer
    x = 120,547,252.73

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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.