Home / 61,205,237.10-91,807,855.65-20,815,721.10

Finding the Fourth Proportional to 61,205,237.10, 91,807,855.65 and 20,815,721.10

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Solution

The fourth proportional to 61,205,237.10, 91,807,855.65 and 20,815,721.10 is: 31,223,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,205,237.10 : 91,807,855.65 = 20,815,721.10 : x
  2. Step 2: Convert to fraction form
    61,205,237.10/91,807,855.65 = 20,815,721.10/x
  3. Step 3: Cross multiply
    61,205,237.10x = 91,807,855.65 × 20,815,721.10
  4. Step 4: Simplify right side
    61,205,237.10x = 1,911,046,717,999,459.50
  5. Step 5: Solve for x
    x = 1,911,046,717,999,459.50/61,205,237.10
  6. Step 6: Final answer
    x = 31,223,581.65

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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.