Home / 126,749,772,003.10-190,124,658,004.65-82,118,931,670.30

Finding the Fourth Proportional to 126,749,772,003.10, 190,124,658,004.65 and 82,118,931,670.30

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Solution

The fourth proportional to 126,749,772,003.10, 190,124,658,004.65 and 82,118,931,670.30 is: 123,178,397,505.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,749,772,003.10 : 190,124,658,004.65 = 82,118,931,670.30 : x
  2. Step 2: Convert to fraction form
    126,749,772,003.10/190,124,658,004.65 = 82,118,931,670.30/x
  3. Step 3: Cross multiply
    126,749,772,003.10x = 190,124,658,004.65 × 82,118,931,670.30
  4. Step 4: Simplify right side
    126,749,772,003.10x = 15,612,833,799,523,008,512,000
  5. Step 5: Solve for x
    x = 15,612,833,799,523,008,512,000/126,749,772,003.10
  6. Step 6: Final answer
    x = 123,178,397,505.45

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Double scale
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1.5x scale

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.