Home / 154,784,833.52-213,596,665.88-84,220,734.02

Finding the Fourth Proportional to 154,784,833.52, 213,596,665.88 and 84,220,734.02

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Solution

The fourth proportional to 154,784,833.52, 213,596,665.88 and 84,220,734.02 is: 116,221,128.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,784,833.52 : 213,596,665.88 = 84,220,734.02 : x
  2. Step 2: Convert to fraction form
    154,784,833.52/213,596,665.88 = 84,220,734.02/x
  3. Step 3: Cross multiply
    154,784,833.52x = 213,596,665.88 × 84,220,734.02
  4. Step 4: Simplify right side
    154,784,833.52x = 17,989,267,983,149,202
  5. Step 5: Solve for x
    x = 17,989,267,983,149,202/154,784,833.52
  6. Step 6: Final answer
    x = 116,221,128.22

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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.