Home / 45,448,047,008.90-68,172,070,513.35-18,909,743,512.40

Finding the Fourth Proportional to 45,448,047,008.90, 68,172,070,513.35 and 18,909,743,512.40

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Solution

The fourth proportional to 45,448,047,008.90, 68,172,070,513.35 and 18,909,743,512.40 is: 28,364,615,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,448,047,008.90 : 68,172,070,513.35 = 18,909,743,512.40 : x
  2. Step 2: Convert to fraction form
    45,448,047,008.90/68,172,070,513.35 = 18,909,743,512.40/x
  3. Step 3: Cross multiply
    45,448,047,008.90x = 68,172,070,513.35 × 18,909,743,512.40
  4. Step 4: Simplify right side
    45,448,047,008.90x = 1,289,116,368,116,695,695,360
  5. Step 5: Solve for x
    x = 1,289,116,368,116,695,695,360/45,448,047,008.90
  6. Step 6: Final answer
    x = 28,364,615,268.60

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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.