Home / 128,009,453.40-176,653,045.93-69,272,118.51

Finding the Fourth Proportional to 128,009,453.40, 176,653,045.93 and 69,272,118.51

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Solution

The fourth proportional to 128,009,453.40, 176,653,045.93 and 69,272,118.51 is: 95,595,523.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,009,453.40 : 176,653,045.93 = 69,272,118.51 : x
  2. Step 2: Convert to fraction form
    128,009,453.40/176,653,045.93 = 69,272,118.51/x
  3. Step 3: Cross multiply
    128,009,453.40x = 176,653,045.93 × 69,272,118.51
  4. Step 4: Simplify right side
    128,009,453.40x = 12,237,130,733,405,464
  5. Step 5: Solve for x
    x = 12,237,130,733,405,464/128,009,453.40
  6. Step 6: Final answer
    x = 95,595,523.68

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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.