Home / 128,009,468.21-176,653,066.31-69,272,133.32

Finding the Fourth Proportional to 128,009,468.21, 176,653,066.31 and 69,272,133.32

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Solution

The fourth proportional to 128,009,468.21, 176,653,066.31 and 69,272,133.32 is: 95,595,544.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,009,468.21 : 176,653,066.31 = 69,272,133.32 : x
  2. Step 2: Convert to fraction form
    128,009,468.21/176,653,066.31 = 69,272,133.32/x
  3. Step 3: Cross multiply
    128,009,468.21x = 176,653,066.31 × 69,272,133.32
  4. Step 4: Simplify right side
    128,009,468.21x = 12,237,134,759,583,494
  5. Step 5: Solve for x
    x = 12,237,134,759,583,494/128,009,468.21
  6. Step 6: Final answer
    x = 95,595,544.07

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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.