Home / 13,211,292,002.40-19,816,938,003.60-7,333,979,695.20

Finding the Fourth Proportional to 13,211,292,002.40, 19,816,938,003.60 and 7,333,979,695.20

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Solution

The fourth proportional to 13,211,292,002.40, 19,816,938,003.60 and 7,333,979,695.20 is: 11,000,969,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211,292,002.40 : 19,816,938,003.60 = 7,333,979,695.20 : x
  2. Step 2: Convert to fraction form
    13,211,292,002.40/19,816,938,003.60 = 7,333,979,695.20/x
  3. Step 3: Cross multiply
    13,211,292,002.40x = 19,816,938,003.60 × 7,333,979,695.20
  4. Step 4: Simplify right side
    13,211,292,002.40x = 145,337,020,939,439,603,712
  5. Step 5: Solve for x
    x = 145,337,020,939,439,603,712/13,211,292,002.40
  6. Step 6: Final answer
    x = 11,000,969,542.80

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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.