Home / 30,943,396.00-42,703,038.90-18,555,506.29

Finding the Fourth Proportional to 30,943,396.00, 42,703,038.90 and 18,555,506.29

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Solution

The fourth proportional to 30,943,396.00, 42,703,038.90 and 18,555,506.29 is: 25,607,289.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,943,396.00 : 42,703,038.90 = 18,555,506.29 : x
  2. Step 2: Convert to fraction form
    30,943,396.00/42,703,038.90 = 18,555,506.29/x
  3. Step 3: Cross multiply
    30,943,396.00x = 42,703,038.90 × 18,555,506.29
  4. Step 4: Simplify right side
    30,943,396.00x = 792,376,506,604,772
  5. Step 5: Solve for x
    x = 792,376,506,604,772/30,943,396.00
  6. Step 6: Final answer
    x = 25,607,289.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.