Home / 19,533,312,006.40-29,299,968,009.60-18,771,438,188.80

Finding the Fourth Proportional to 19,533,312,006.40, 29,299,968,009.60 and 18,771,438,188.80

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Solution

The fourth proportional to 19,533,312,006.40, 29,299,968,009.60 and 18,771,438,188.80 is: 28,157,157,283.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,533,312,006.40 : 29,299,968,009.60 = 18,771,438,188.80 : x
  2. Step 2: Convert to fraction form
    19,533,312,006.40/29,299,968,009.60 = 18,771,438,188.80/x
  3. Step 3: Cross multiply
    19,533,312,006.40x = 29,299,968,009.60 × 18,771,438,188.80
  4. Step 4: Simplify right side
    19,533,312,006.40x = 550,002,538,426,023,739,392
  5. Step 5: Solve for x
    x = 550,002,538,426,023,739,392/19,533,312,006.40
  6. Step 6: Final answer
    x = 28,157,157,283.20

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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.