Home / 42,575,999.80-63,863,999.70-19,859,193.40

Finding the Fourth Proportional to 42,575,999.80, 63,863,999.70 and 19,859,193.40

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Solution

The fourth proportional to 42,575,999.80, 63,863,999.70 and 19,859,193.40 is: 29,788,790.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,575,999.80 : 63,863,999.70 = 19,859,193.40 : x
  2. Step 2: Convert to fraction form
    42,575,999.80/63,863,999.70 = 19,859,193.40/x
  3. Step 3: Cross multiply
    42,575,999.80x = 63,863,999.70 × 19,859,193.40
  4. Step 4: Simplify right side
    42,575,999.80x = 1,268,287,521,339,842
  5. Step 5: Solve for x
    x = 1,268,287,521,339,842/42,575,999.80
  6. Step 6: Final answer
    x = 29,788,790.10

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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.