Home / 384,346,709.16-530,398,969.74-208,135,008.06

Finding the Fourth Proportional to 384,346,709.16, 530,398,969.74 and 208,135,008.06

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Solution

The fourth proportional to 384,346,709.16, 530,398,969.74 and 208,135,008.06 is: 287,226,587.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,346,709.16 : 530,398,969.74 = 208,135,008.06 : x
  2. Step 2: Convert to fraction form
    384,346,709.16/530,398,969.74 = 208,135,008.06/x
  3. Step 3: Cross multiply
    384,346,709.16x = 530,398,969.74 × 208,135,008.06
  4. Step 4: Simplify right side
    384,346,709.16x = 110,394,593,841,850,592
  5. Step 5: Solve for x
    x = 110,394,593,841,850,592/384,346,709.16
  6. Step 6: Final answer
    x = 287,226,587.90

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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.