Home / 395,347,209.92-545,578,204.56-216,730,784.64

Finding the Fourth Proportional to 395,347,209.92, 545,578,204.56 and 216,730,784.64

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Solution

The fourth proportional to 395,347,209.92, 545,578,204.56 and 216,730,784.64 is: 299,087,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,347,209.92 : 545,578,204.56 = 216,730,784.64 : x
  2. Step 2: Convert to fraction form
    395,347,209.92/545,578,204.56 = 216,730,784.64/x
  3. Step 3: Cross multiply
    395,347,209.92x = 545,578,204.56 × 216,730,784.64
  4. Step 4: Simplify right side
    395,347,209.92x = 118,243,592,356,771,200
  5. Step 5: Solve for x
    x = 118,243,592,356,771,200/395,347,209.92
  6. Step 6: Final answer
    x = 299,087,964.68

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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.