Home / 92,756,772.49-128,054,041.86-71,517,163.18

Finding the Fourth Proportional to 92,756,772.49, 128,054,041.86 and 71,517,163.18

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Solution

The fourth proportional to 92,756,772.49, 128,054,041.86 and 71,517,163.18 is: 98,732,001.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,756,772.49 : 128,054,041.86 = 71,517,163.18 : x
  2. Step 2: Convert to fraction form
    92,756,772.49/128,054,041.86 = 71,517,163.18/x
  3. Step 3: Cross multiply
    92,756,772.49x = 128,054,041.86 × 71,517,163.18
  4. Step 4: Simplify right side
    92,756,772.49x = 9,158,061,807,560,172
  5. Step 5: Solve for x
    x = 9,158,061,807,560,172/92,756,772.49
  6. Step 6: Final answer
    x = 98,732,001.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.