Home / 45,448,046,909.40-68,172,070,364.10-18,909,743,412.90

Finding the Fourth Proportional to 45,448,046,909.40, 68,172,070,364.10 and 18,909,743,412.90

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Solution

The fourth proportional to 45,448,046,909.40, 68,172,070,364.10 and 18,909,743,412.90 is: 28,364,615,119.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,448,046,909.40 : 68,172,070,364.10 = 18,909,743,412.90 : x
  2. Step 2: Convert to fraction form
    45,448,046,909.40/68,172,070,364.10 = 18,909,743,412.90/x
  3. Step 3: Cross multiply
    45,448,046,909.40x = 68,172,070,364.10 × 18,909,743,412.90
  4. Step 4: Simplify right side
    45,448,046,909.40x = 1,289,116,358,511,295,463,424
  5. Step 5: Solve for x
    x = 1,289,116,358,511,295,463,424/45,448,046,909.40
  6. Step 6: Final answer
    x = 28,364,615,119.35

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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.