Home / 127,817,851.80-191,348,864.10-120,343,560.60

Finding the Fourth Proportional to 127,817,851.80, 191,348,864.10 and 120,343,560.60

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Solution

The fourth proportional to 127,817,851.80, 191,348,864.10 and 120,343,560.60 is: 180,159,526.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,817,851.80 : 191,348,864.10 = 120,343,560.60 : x
  2. Step 2: Convert to fraction form
    127,817,851.80/191,348,864.10 = 120,343,560.60/x
  3. Step 3: Cross multiply
    127,817,851.80x = 191,348,864.10 × 120,343,560.60
  4. Step 4: Simplify right side
    127,817,851.80x = 23,027,603,622,559,512
  5. Step 5: Solve for x
    x = 23,027,603,622,559,512/127,817,851.80
  6. Step 6: Final answer
    x = 180,159,526.22

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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.