Home / 92,756,742.54-128,054,000.67-71,517,133.29

Finding the Fourth Proportional to 92,756,742.54, 128,054,000.67 and 71,517,133.29

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Solution

The fourth proportional to 92,756,742.54, 128,054,000.67 and 71,517,133.29 is: 98,731,960.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,756,742.54 : 128,054,000.67 = 71,517,133.29 : x
  2. Step 2: Convert to fraction form
    92,756,742.54/128,054,000.67 = 71,517,133.29/x
  3. Step 3: Cross multiply
    92,756,742.54x = 128,054,000.67 × 71,517,133.29
  4. Step 4: Simplify right side
    92,756,742.54x = 9,158,055,034,234,140
  5. Step 5: Solve for x
    x = 9,158,055,034,234,140/92,756,742.54
  6. Step 6: Final answer
    x = 98,731,960.43

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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.