Home / 19,985,245,434.67-29,978,098,442.38-7,223,288,818.13

Finding the Fourth Proportional to 19,985,245,434.67, 29,978,098,442.38 and 7,223,288,818.13

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Solution

The fourth proportional to 19,985,245,434.67, 29,978,098,442.38 and 7,223,288,818.13 is: 10,835,016,461.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985,245,434.67 : 29,978,098,442.38 = 7,223,288,818.13 : x
  2. Step 2: Convert to fraction form
    19,985,245,434.67/29,978,098,442.38 = 7,223,288,818.13/x
  3. Step 3: Cross multiply
    19,985,245,434.67x = 29,978,098,442.38 × 7,223,288,818.13
  4. Step 4: Simplify right side
    19,985,245,434.67x = 216,540,463,267,643,850,752
  5. Step 5: Solve for x
    x = 216,540,463,267,643,850,752/19,985,245,434.67
  6. Step 6: Final answer
    x = 10,835,016,461.29

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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.