Home / 12,939,264,677.60-19,408,897,016.40-5,190,039,000.80

Finding the Fourth Proportional to 12,939,264,677.60, 19,408,897,016.40 and 5,190,039,000.80

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Solution

The fourth proportional to 12,939,264,677.60, 19,408,897,016.40 and 5,190,039,000.80 is: 7,785,058,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939,264,677.60 : 19,408,897,016.40 = 5,190,039,000.80 : x
  2. Step 2: Convert to fraction form
    12,939,264,677.60/19,408,897,016.40 = 5,190,039,000.80/x
  3. Step 3: Cross multiply
    12,939,264,677.60x = 19,408,897,016.40 × 5,190,039,000.80
  4. Step 4: Simplify right side
    12,939,264,677.60x = 100,732,932,477,626,761,216
  5. Step 5: Solve for x
    x = 100,732,932,477,626,761,216/12,939,264,677.60
  6. Step 6: Final answer
    x = 7,785,058,501.20

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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.