Home / 128,009,449.02-176,653,039.86-69,272,114.10

Finding the Fourth Proportional to 128,009,449.02, 176,653,039.86 and 69,272,114.10

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Solution

The fourth proportional to 128,009,449.02, 176,653,039.86 and 69,272,114.10 is: 95,595,517.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,009,449.02 : 176,653,039.86 = 69,272,114.10 : x
  2. Step 2: Convert to fraction form
    128,009,449.02/176,653,039.86 = 69,272,114.10/x
  3. Step 3: Cross multiply
    128,009,449.02x = 176,653,039.86 × 69,272,114.10
  4. Step 4: Simplify right side
    128,009,449.02x = 12,237,129,533,293,768
  5. Step 5: Solve for x
    x = 12,237,129,533,293,768/128,009,449.02
  6. Step 6: Final answer
    x = 95,595,517.57

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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.