Home / 13,112,752.80-19,669,129.20-12,860,810.40

Finding the Fourth Proportional to 13,112,752.80, 19,669,129.20 and 12,860,810.40

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Solution

The fourth proportional to 13,112,752.80, 19,669,129.20 and 12,860,810.40 is: 19,291,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112,752.80 : 19,669,129.20 = 12,860,810.40 : x
  2. Step 2: Convert to fraction form
    13,112,752.80/19,669,129.20 = 12,860,810.40/x
  3. Step 3: Cross multiply
    13,112,752.80x = 19,669,129.20 × 12,860,810.40
  4. Step 4: Simplify right side
    13,112,752.80x = 252,960,941,374,303.69
  5. Step 5: Solve for x
    x = 252,960,941,374,303.69/13,112,752.80
  6. Step 6: Final answer
    x = 19,291,215.60

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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.