Home / 12,678,912,307.80-19,018,368,461.70-8,270,928,077.40

Finding the Fourth Proportional to 12,678,912,307.80, 19,018,368,461.70 and 8,270,928,077.40

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Solution

The fourth proportional to 12,678,912,307.80, 19,018,368,461.70 and 8,270,928,077.40 is: 12,406,392,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,678,912,307.80 : 19,018,368,461.70 = 8,270,928,077.40 : x
  2. Step 2: Convert to fraction form
    12,678,912,307.80/19,018,368,461.70 = 8,270,928,077.40/x
  3. Step 3: Cross multiply
    12,678,912,307.80x = 19,018,368,461.70 × 8,270,928,077.40
  4. Step 4: Simplify right side
    12,678,912,307.80x = 157,299,557,696,213,188,608
  5. Step 5: Solve for x
    x = 157,299,557,696,213,188,608/12,678,912,307.80
  6. Step 6: Final answer
    x = 12,406,392,116.10

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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.