Home / 12,576,386,438.40-18,864,579,657.60-4,294,031,980.80

Finding the Fourth Proportional to 12,576,386,438.40, 18,864,579,657.60 and 4,294,031,980.80

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Solution

The fourth proportional to 12,576,386,438.40, 18,864,579,657.60 and 4,294,031,980.80 is: 6,441,047,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576,386,438.40 : 18,864,579,657.60 = 4,294,031,980.80 : x
  2. Step 2: Convert to fraction form
    12,576,386,438.40/18,864,579,657.60 = 4,294,031,980.80/x
  3. Step 3: Cross multiply
    12,576,386,438.40x = 18,864,579,657.60 × 4,294,031,980.80
  4. Step 4: Simplify right side
    12,576,386,438.40x = 81,005,108,354,083,504,128
  5. Step 5: Solve for x
    x = 81,005,108,354,083,504,128/12,576,386,438.40
  6. Step 6: Final answer
    x = 6,441,047,971.20

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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.