Home / 86,592,820.23-129,888,146.52-21,014,501.15

Finding the Fourth Proportional to 86,592,820.23, 129,888,146.52 and 21,014,501.15

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Solution

The fourth proportional to 86,592,820.23, 129,888,146.52 and 21,014,501.15 is: 31,521,488.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,592,820.23 : 129,888,146.52 = 21,014,501.15 : x
  2. Step 2: Convert to fraction form
    86,592,820.23/129,888,146.52 = 21,014,501.15/x
  3. Step 3: Cross multiply
    86,592,820.23x = 129,888,146.52 × 21,014,501.15
  4. Step 4: Simplify right side
    86,592,820.23x = 2,729,534,603,661,395
  5. Step 5: Solve for x
    x = 2,729,534,603,661,395/86,592,820.23
  6. Step 6: Final answer
    x = 31,521,488.69

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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.