Home / 61,116,521.90-91,683,897.28-20,180,285.06

Finding the Fourth Proportional to 61,116,521.90, 91,683,897.28 and 20,180,285.06

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Solution

The fourth proportional to 61,116,521.90, 91,683,897.28 and 20,180,285.06 is: 30,273,437.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,116,521.90 : 91,683,897.28 = 20,180,285.06 : x
  2. Step 2: Convert to fraction form
    61,116,521.90/91,683,897.28 = 20,180,285.06/x
  3. Step 3: Cross multiply
    61,116,521.90x = 91,683,897.28 × 20,180,285.06
  4. Step 4: Simplify right side
    61,116,521.90x = 1,850,207,182,700,917.75
  5. Step 5: Solve for x
    x = 1,850,207,182,700,917.75/61,116,521.90
  6. Step 6: Final answer
    x = 30,273,437.12

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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.