Home / 13,930,731.98-19,223,355.48-7,817,979.50

Finding the Fourth Proportional to 13,930,731.98, 19,223,355.48 and 7,817,979.50

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Solution

The fourth proportional to 13,930,731.98, 19,223,355.48 and 7,817,979.50 is: 10,788,219.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930,731.98 : 19,223,355.48 = 7,817,979.50 : x
  2. Step 2: Convert to fraction form
    13,930,731.98/19,223,355.48 = 7,817,979.50/x
  3. Step 3: Cross multiply
    13,930,731.98x = 19,223,355.48 × 7,817,979.50
  4. Step 4: Simplify right side
    13,930,731.98x = 150,287,799,063,852.66
  5. Step 5: Solve for x
    x = 150,287,799,063,852.66/13,930,731.98
  6. Step 6: Final answer
    x = 10,788,219.84

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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.