Home / 126,749,772,004.10-190,124,658,006.15-82,118,931,671.30

Finding the Fourth Proportional to 126,749,772,004.10, 190,124,658,006.15 and 82,118,931,671.30

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Solution

The fourth proportional to 126,749,772,004.10, 190,124,658,006.15 and 82,118,931,671.30 is: 123,178,397,506.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,749,772,004.10 : 190,124,658,006.15 = 82,118,931,671.30 : x
  2. Step 2: Convert to fraction form
    126,749,772,004.10/190,124,658,006.15 = 82,118,931,671.30/x
  3. Step 3: Cross multiply
    126,749,772,004.10x = 190,124,658,006.15 × 82,118,931,671.30
  4. Step 4: Simplify right side
    126,749,772,004.10x = 15,612,833,799,836,312,535,040
  5. Step 5: Solve for x
    x = 15,612,833,799,836,312,535,040/126,749,772,004.10
  6. Step 6: Final answer
    x = 123,178,397,506.95

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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.