Home / 128,009,466.70-176,653,064.23-69,272,131.82

Finding the Fourth Proportional to 128,009,466.70, 176,653,064.23 and 69,272,131.82

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Solution

The fourth proportional to 128,009,466.70, 176,653,064.23 and 69,272,131.82 is: 95,595,542.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,009,466.70 : 176,653,064.23 = 69,272,131.82 : x
  2. Step 2: Convert to fraction form
    128,009,466.70/176,653,064.23 = 69,272,131.82/x
  3. Step 3: Cross multiply
    128,009,466.70x = 176,653,064.23 × 69,272,131.82
  4. Step 4: Simplify right side
    128,009,466.70x = 12,237,134,350,691,040
  5. Step 5: Solve for x
    x = 12,237,134,350,691,040/128,009,466.70
  6. Step 6: Final answer
    x = 95,595,542.00

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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.