Home / 21,942,615,970.35-30,280,294,987.26-12,910,959,066.87

Finding the Fourth Proportional to 21,942,615,970.35, 30,280,294,987.26 and 12,910,959,066.87

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Solution

The fourth proportional to 21,942,615,970.35, 30,280,294,987.26 and 12,910,959,066.87 is: 17,816,820,457.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942,615,970.35 : 30,280,294,987.26 = 12,910,959,066.87 : x
  2. Step 2: Convert to fraction form
    21,942,615,970.35/30,280,294,987.26 = 12,910,959,066.87/x
  3. Step 3: Cross multiply
    21,942,615,970.35x = 30,280,294,987.26 × 12,910,959,066.87
  4. Step 4: Simplify right side
    21,942,615,970.35x = 390,947,649,113,262,718,976
  5. Step 5: Solve for x
    x = 390,947,649,113,262,718,976/21,942,615,970.35
  6. Step 6: Final answer
    x = 17,816,820,457.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.