Home / 112,786,985.79-169,147,657.86-43,684,376.90

Finding the Fourth Proportional to 112,786,985.79, 169,147,657.86 and 43,684,376.90

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Solution

The fourth proportional to 112,786,985.79, 169,147,657.86 and 43,684,376.90 is: 65,513,853.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,786,985.79 : 169,147,657.86 = 43,684,376.90 : x
  2. Step 2: Convert to fraction form
    112,786,985.79/169,147,657.86 = 43,684,376.90/x
  3. Step 3: Cross multiply
    112,786,985.79x = 169,147,657.86 × 43,684,376.90
  4. Step 4: Simplify right side
    112,786,985.79x = 7,389,110,036,862,750
  5. Step 5: Solve for x
    x = 7,389,110,036,862,750/112,786,985.79
  6. Step 6: Final answer
    x = 65,513,853.26

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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.