Home / 130,406,679.20-195,610,018.80-92,142,927.20

Finding the Fourth Proportional to 130,406,679.20, 195,610,018.80 and 92,142,927.20

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Solution

The fourth proportional to 130,406,679.20, 195,610,018.80 and 92,142,927.20 is: 138,214,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,406,679.20 : 195,610,018.80 = 92,142,927.20 : x
  2. Step 2: Convert to fraction form
    130,406,679.20/195,610,018.80 = 92,142,927.20/x
  3. Step 3: Cross multiply
    130,406,679.20x = 195,610,018.80 × 92,142,927.20
  4. Step 4: Simplify right side
    130,406,679.20x = 18,024,079,721,879,032
  5. Step 5: Solve for x
    x = 18,024,079,721,879,032/130,406,679.20
  6. Step 6: Final answer
    x = 138,214,390.80

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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.