Home / 89,484,986.72-133,574,205.44-76,787,089.76

Finding the Fourth Proportional to 89,484,986.72, 133,574,205.44 and 76,787,089.76

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Solution

The fourth proportional to 89,484,986.72, 133,574,205.44 and 76,787,089.76 is: 114,620,059.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,484,986.72 : 133,574,205.44 = 76,787,089.76 : x
  2. Step 2: Convert to fraction form
    89,484,986.72/133,574,205.44 = 76,787,089.76/x
  3. Step 3: Cross multiply
    89,484,986.72x = 133,574,205.44 × 76,787,089.76
  4. Step 4: Simplify right side
    89,484,986.72x = 10,256,774,502,741,960
  5. Step 5: Solve for x
    x = 10,256,774,502,741,960/89,484,986.72
  6. Step 6: Final answer
    x = 114,620,059.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.