Home / 86,592,817.12-129,888,141.81-21,014,498.04

Finding the Fourth Proportional to 86,592,817.12, 129,888,141.81 and 21,014,498.04

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Solution

The fourth proportional to 86,592,817.12, 129,888,141.81 and 21,014,498.04 is: 31,521,484.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,592,817.12 : 129,888,141.81 = 21,014,498.04 : x
  2. Step 2: Convert to fraction form
    86,592,817.12/129,888,141.81 = 21,014,498.04/x
  3. Step 3: Cross multiply
    86,592,817.12x = 129,888,141.81 × 21,014,498.04
  4. Step 4: Simplify right side
    86,592,817.12x = 2,729,534,100,730,974
  5. Step 5: Solve for x
    x = 2,729,534,100,730,974/86,592,817.12
  6. Step 6: Final answer
    x = 31,521,484.02

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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.