Home / 45,448,046,908.40-68,172,070,362.60-18,909,743,411.90

Finding the Fourth Proportional to 45,448,046,908.40, 68,172,070,362.60 and 18,909,743,411.90

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Solution

The fourth proportional to 45,448,046,908.40, 68,172,070,362.60 and 18,909,743,411.90 is: 28,364,615,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,448,046,908.40 : 68,172,070,362.60 = 18,909,743,411.90 : x
  2. Step 2: Convert to fraction form
    45,448,046,908.40/68,172,070,362.60 = 18,909,743,411.90/x
  3. Step 3: Cross multiply
    45,448,046,908.40x = 68,172,070,362.60 × 18,909,743,411.90
  4. Step 4: Simplify right side
    45,448,046,908.40x = 1,289,116,358,414,758,576,128
  5. Step 5: Solve for x
    x = 1,289,116,358,414,758,576,128/45,448,046,908.40
  6. Step 6: Final answer
    x = 28,364,615,117.85

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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.