Home / 384,781,909-530,984,803.36-208,566,120.92

Finding the Fourth Proportional to 384,781,909, 530,984,803.36 and 208,566,120.92

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Solution

The fourth proportional to 384,781,909, 530,984,803.36 and 208,566,120.92 is: 287,813,533.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,781,909 : 530,984,803.36 = 208,566,120.92 : x
  2. Step 2: Convert to fraction form
    384,781,909/530,984,803.36 = 208,566,120.92/x
  3. Step 3: Cross multiply
    384,781,909x = 530,984,803.36 × 208,566,120.92
  4. Step 4: Simplify right side
    384,781,909x = 110,745,440,704,264,176
  5. Step 5: Solve for x
    x = 110,745,440,704,264,176/384,781,909
  6. Step 6: Final answer
    x = 287,813,533.11

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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.