Home / 126,749,784.96-190,122,636.24-40,487,623.20

Finding the Fourth Proportional to 126,749,784.96, 190,122,636.24 and 40,487,623.20

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Solution

The fourth proportional to 126,749,784.96, 190,122,636.24 and 40,487,623.20 is: 60,730,782.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,749,784.96 : 190,122,636.24 = 40,487,623.20 : x
  2. Step 2: Convert to fraction form
    126,749,784.96/190,122,636.24 = 40,487,623.20/x
  3. Step 3: Cross multiply
    126,749,784.96x = 190,122,636.24 × 40,487,623.20
  4. Step 4: Simplify right side
    126,749,784.96x = 7,697,613,657,875,786
  5. Step 5: Solve for x
    x = 7,697,613,657,875,786/126,749,784.96
  6. Step 6: Final answer
    x = 60,730,782.78

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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.