Home / 252,688,444.12-378,997,279.08-86,689,194

Finding the Fourth Proportional to 252,688,444.12, 378,997,279.08 and 86,689,194

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Solution

The fourth proportional to 252,688,444.12, 378,997,279.08 and 86,689,194 is: 130,021,650.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,688,444.12 : 378,997,279.08 = 86,689,194 : x
  2. Step 2: Convert to fraction form
    252,688,444.12/378,997,279.08 = 86,689,194/x
  3. Step 3: Cross multiply
    252,688,444.12x = 378,997,279.08 × 86,689,194
  4. Step 4: Simplify right side
    252,688,444.12x = 32,854,968,651,638,260
  5. Step 5: Solve for x
    x = 32,854,968,651,638,260/252,688,444.12
  6. Step 6: Final answer
    x = 130,021,650.84

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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.