Home / 127,155,649.96-190,455,394.02-90,155,385.28

Finding the Fourth Proportional to 127,155,649.96, 190,455,394.02 and 90,155,385.28

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Solution

The fourth proportional to 127,155,649.96, 190,455,394.02 and 90,155,385.28 is: 135,035,914.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,155,649.96 : 190,455,394.02 = 90,155,385.28 : x
  2. Step 2: Convert to fraction form
    127,155,649.96/190,455,394.02 = 90,155,385.28/x
  3. Step 3: Cross multiply
    127,155,649.96x = 190,455,394.02 × 90,155,385.28
  4. Step 4: Simplify right side
    127,155,649.96x = 17,170,579,426,527,310
  5. Step 5: Solve for x
    x = 17,170,579,426,527,310/127,155,649.96
  6. Step 6: Final answer
    x = 135,035,914.11

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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.