Home / 384,613,215.36-530,766,702.72-208,401,072

Finding the Fourth Proportional to 384,613,215.36, 530,766,702.72 and 208,401,072

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Solution

The fourth proportional to 384,613,215.36, 530,766,702.72 and 208,401,072 is: 287,593,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,613,215.36 : 530,766,702.72 = 208,401,072 : x
  2. Step 2: Convert to fraction form
    384,613,215.36/530,766,702.72 = 208,401,072/x
  3. Step 3: Cross multiply
    384,613,215.36x = 530,766,702.72 × 208,401,072
  4. Step 4: Simplify right side
    384,613,215.36x = 110,612,349,828,753,328
  5. Step 5: Solve for x
    x = 110,612,349,828,753,328/384,613,215.36
  6. Step 6: Final answer
    x = 287,593,731.60

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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.