Home / 384,524,825.60-530,642,078.88-208,316,267.36

Finding the Fourth Proportional to 384,524,825.60, 530,642,078.88 and 208,316,267.36

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Solution

The fourth proportional to 384,524,825.60, 530,642,078.88 and 208,316,267.36 is: 287,475,267.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,524,825.60 : 530,642,078.88 = 208,316,267.36 : x
  2. Step 2: Convert to fraction form
    384,524,825.60/530,642,078.88 = 208,316,267.36/x
  3. Step 3: Cross multiply
    384,524,825.60x = 530,642,078.88 × 208,316,267.36
  4. Step 4: Simplify right side
    384,524,825.60x = 110,541,377,176,432,288
  5. Step 5: Solve for x
    x = 110,541,377,176,432,288/384,524,825.60
  6. Step 6: Final answer
    x = 287,475,267.70

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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.