Home / 384,686,734.55-530,868,143.30-208,474,720.79

Finding the Fourth Proportional to 384,686,734.55, 530,868,143.30 and 208,474,720.79

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Solution

The fourth proportional to 384,686,734.55, 530,868,143.30 and 208,474,720.79 is: 287,695,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,686,734.55 : 530,868,143.30 = 208,474,720.79 : x
  2. Step 2: Convert to fraction form
    384,686,734.55/530,868,143.30 = 208,474,720.79/x
  3. Step 3: Cross multiply
    384,686,734.55x = 530,868,143.30 × 208,474,720.79
  4. Step 4: Simplify right side
    384,686,734.55x = 110,672,587,947,076,496
  5. Step 5: Solve for x
    x = 110,672,587,947,076,496/384,686,734.55
  6. Step 6: Final answer
    x = 287,695,358.35

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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.