Home / 128,009,444.51-176,653,033.65-69,272,109.60

Finding the Fourth Proportional to 128,009,444.51, 176,653,033.65 and 69,272,109.60

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Solution

The fourth proportional to 128,009,444.51, 176,653,033.65 and 69,272,109.60 is: 95,595,511.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,009,444.51 : 176,653,033.65 = 69,272,109.60 : x
  2. Step 2: Convert to fraction form
    128,009,444.51/176,653,033.65 = 69,272,109.60/x
  3. Step 3: Cross multiply
    128,009,444.51x = 176,653,033.65 × 69,272,109.60
  4. Step 4: Simplify right side
    128,009,444.51x = 12,237,128,307,512,840
  5. Step 5: Solve for x
    x = 12,237,128,307,512,840/128,009,444.51
  6. Step 6: Final answer
    x = 95,595,511.36

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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.