Home / 19,533,312,009.40-29,299,968,014.10-18,771,438,191.80

Finding the Fourth Proportional to 19,533,312,009.40, 29,299,968,014.10 and 18,771,438,191.80

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Solution

The fourth proportional to 19,533,312,009.40, 29,299,968,014.10 and 18,771,438,191.80 is: 28,157,157,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,533,312,009.40 : 29,299,968,014.10 = 18,771,438,191.80 : x
  2. Step 2: Convert to fraction form
    19,533,312,009.40/29,299,968,014.10 = 18,771,438,191.80/x
  3. Step 3: Cross multiply
    19,533,312,009.40x = 29,299,968,014.10 × 18,771,438,191.80
  4. Step 4: Simplify right side
    19,533,312,009.40x = 550,002,538,598,395,084,800
  5. Step 5: Solve for x
    x = 550,002,538,598,395,084,800/19,533,312,009.40
  6. Step 6: Final answer
    x = 28,157,157,287.70

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Double scale
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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.