Home / 13,334,657.18-20,001,985.77-12,812,109.98

Finding the Fourth Proportional to 13,334,657.18, 20,001,985.77 and 12,812,109.98

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Solution

The fourth proportional to 13,334,657.18, 20,001,985.77 and 12,812,109.98 is: 19,218,164.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,334,657.18 : 20,001,985.77 = 12,812,109.98 : x
  2. Step 2: Convert to fraction form
    13,334,657.18/20,001,985.77 = 12,812,109.98/x
  3. Step 3: Cross multiply
    13,334,657.18x = 20,001,985.77 × 12,812,109.98
  4. Step 4: Simplify right side
    13,334,657.18x = 256,267,641,403,625.03
  5. Step 5: Solve for x
    x = 256,267,641,403,625.03/13,334,657.18
  6. Step 6: Final answer
    x = 19,218,164.97

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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.