Home / 128,009,441.90-176,653,030.05-69,272,107.00

Finding the Fourth Proportional to 128,009,441.90, 176,653,030.05 and 69,272,107.00

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Solution

The fourth proportional to 128,009,441.90, 176,653,030.05 and 69,272,107.00 is: 95,595,507.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,009,441.90 : 176,653,030.05 = 69,272,107.00 : x
  2. Step 2: Convert to fraction form
    128,009,441.90/176,653,030.05 = 69,272,107.00/x
  3. Step 3: Cross multiply
    128,009,441.90x = 176,653,030.05 × 69,272,107.00
  4. Step 4: Simplify right side
    128,009,441.90x = 12,237,127,599,056,184
  5. Step 5: Solve for x
    x = 12,237,127,599,056,184/128,009,441.90
  6. Step 6: Final answer
    x = 95,595,507.78

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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.