Home / 384,476,499.57-530,580,116.96-208,264,494.93

Finding the Fourth Proportional to 384,476,499.57, 530,580,116.96 and 208,264,494.93

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Solution

The fourth proportional to 384,476,499.57, 530,580,116.96 and 208,264,494.93 is: 287,406,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,476,499.57 : 530,580,116.96 = 208,264,494.93 : x
  2. Step 2: Convert to fraction form
    384,476,499.57/530,580,116.96 = 208,264,494.93/x
  3. Step 3: Cross multiply
    384,476,499.57x = 530,580,116.96 × 208,264,494.93
  4. Step 4: Simplify right side
    384,476,499.57x = 110,501,000,077,533,408
  5. Step 5: Solve for x
    x = 110,501,000,077,533,408/384,476,499.57
  6. Step 6: Final answer
    x = 287,406,382.97

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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.