Home / 12,877,365,770.40-19,316,048,655.60-7,918,383,511.20

Finding the Fourth Proportional to 12,877,365,770.40, 19,316,048,655.60 and 7,918,383,511.20

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Solution

The fourth proportional to 12,877,365,770.40, 19,316,048,655.60 and 7,918,383,511.20 is: 11,877,575,266.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877,365,770.40 : 19,316,048,655.60 = 7,918,383,511.20 : x
  2. Step 2: Convert to fraction form
    12,877,365,770.40/19,316,048,655.60 = 7,918,383,511.20/x
  3. Step 3: Cross multiply
    12,877,365,770.40x = 19,316,048,655.60 × 7,918,383,511.20
  4. Step 4: Simplify right side
    12,877,365,770.40x = 152,951,881,176,039,948,288
  5. Step 5: Solve for x
    x = 152,951,881,176,039,948,288/12,877,365,770.40
  6. Step 6: Final answer
    x = 11,877,575,266.80

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Double scale
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Similar ratio
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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.