Home / 155,307,166.70-214,328,374.72-85,697,031.51

Finding the Fourth Proportional to 155,307,166.70, 214,328,374.72 and 85,697,031.51

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Solution

The fourth proportional to 155,307,166.70, 214,328,374.72 and 85,697,031.51 is: 118,264,378.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,307,166.70 : 214,328,374.72 = 85,697,031.51 : x
  2. Step 2: Convert to fraction form
    155,307,166.70/214,328,374.72 = 85,697,031.51/x
  3. Step 3: Cross multiply
    155,307,166.70x = 214,328,374.72 × 85,697,031.51
  4. Step 4: Simplify right side
    155,307,166.70x = 18,367,305,481,652,688
  5. Step 5: Solve for x
    x = 18,367,305,481,652,688/155,307,166.70
  6. Step 6: Final answer
    x = 118,264,378.09

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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.