Home / 128,002,048.02-176,643,133.32-69,265,343.42

Finding the Fourth Proportional to 128,002,048.02, 176,643,133.32 and 69,265,343.42

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Solution

The fourth proportional to 128,002,048.02, 176,643,133.32 and 69,265,343.42 is: 95,586,340.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,002,048.02 : 176,643,133.32 = 69,265,343.42 : x
  2. Step 2: Convert to fraction form
    128,002,048.02/176,643,133.32 = 69,265,343.42/x
  3. Step 3: Cross multiply
    128,002,048.02x = 176,643,133.32 × 69,265,343.42
  4. Step 4: Simplify right side
    128,002,048.02x = 12,235,247,291,311,430
  5. Step 5: Solve for x
    x = 12,235,247,291,311,430/128,002,048.02
  6. Step 6: Final answer
    x = 95,586,340.07

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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.