Home / 384,779,692.82-530,981,750.48-208,563,904.77

Finding the Fourth Proportional to 384,779,692.82, 530,981,750.48 and 208,563,904.77

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Solution

The fourth proportional to 384,779,692.82, 530,981,750.48 and 208,563,904.77 is: 287,810,477.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,692.82 : 530,981,750.48 = 208,563,904.77 : x
  2. Step 2: Convert to fraction form
    384,779,692.82/530,981,750.48 = 208,563,904.77/x
  3. Step 3: Cross multiply
    384,779,692.82x = 530,981,750.48 × 208,563,904.77
  4. Step 4: Simplify right side
    384,779,692.82x = 110,743,627,243,139,104
  5. Step 5: Solve for x
    x = 110,743,627,243,139,104/384,779,692.82
  6. Step 6: Final answer
    x = 287,810,477.82

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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.