Home / 485,054,948.70-727,588,643.85-161,938,820.70

Finding the Fourth Proportional to 485,054,948.70, 727,588,643.85 and 161,938,820.70

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Solution

The fourth proportional to 485,054,948.70, 727,588,643.85 and 161,938,820.70 is: 242,910,307.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,054,948.70 : 727,588,643.85 = 161,938,820.70 : x
  2. Step 2: Convert to fraction form
    485,054,948.70/727,588,643.85 = 161,938,820.70/x
  3. Step 3: Cross multiply
    485,054,948.70x = 727,588,643.85 × 161,938,820.70
  4. Step 4: Simplify right side
    485,054,948.70x = 117,824,846,939,781,296
  5. Step 5: Solve for x
    x = 117,824,846,939,781,296/485,054,948.70
  6. Step 6: Final answer
    x = 242,910,307.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.