Home / 315,612,608,911.20-473,371,079,457.21-85,897,844,671.00

Finding the Fourth Proportional to 315,612,608,911.20, 473,371,079,457.21 and 85,897,844,671.00

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Solution

The fourth proportional to 315,612,608,911.20, 473,371,079,457.21 and 85,897,844,671.00 is: 128,833,748,421.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,612,608,911.20 : 473,371,079,457.21 = 85,897,844,671.00 : x
  2. Step 2: Convert to fraction form
    315,612,608,911.20/473,371,079,457.21 = 85,897,844,671.00/x
  3. Step 3: Cross multiply
    315,612,608,911.20x = 473,371,079,457.21 × 85,897,844,671.00
  4. Step 4: Simplify right side
    315,612,608,911.20x = 40,661,555,454,959,970,942,976
  5. Step 5: Solve for x
    x = 40,661,555,454,959,970,942,976/315,612,608,911.20
  6. Step 6: Final answer
    x = 128,833,748,421.00

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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.