Home / 124,426,820.40-186,640,230.60-79,021,201.20

Finding the Fourth Proportional to 124,426,820.40, 186,640,230.60 and 79,021,201.20

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Solution

The fourth proportional to 124,426,820.40, 186,640,230.60 and 79,021,201.20 is: 118,531,801.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,426,820.40 : 186,640,230.60 = 79,021,201.20 : x
  2. Step 2: Convert to fraction form
    124,426,820.40/186,640,230.60 = 79,021,201.20/x
  3. Step 3: Cross multiply
    124,426,820.40x = 186,640,230.60 × 79,021,201.20
  4. Step 4: Simplify right side
    124,426,820.40x = 14,748,535,214,256,996
  5. Step 5: Solve for x
    x = 14,748,535,214,256,996/124,426,820.40
  6. Step 6: Final answer
    x = 118,531,801.80

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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.