Home / 13,021,397.20-19,532,095.80-12,357,845.20

Finding the Fourth Proportional to 13,021,397.20, 19,532,095.80 and 12,357,845.20

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Solution

The fourth proportional to 13,021,397.20, 19,532,095.80 and 12,357,845.20 is: 18,536,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021,397.20 : 19,532,095.80 = 12,357,845.20 : x
  2. Step 2: Convert to fraction form
    13,021,397.20/19,532,095.80 = 12,357,845.20/x
  3. Step 3: Cross multiply
    13,021,397.20x = 19,532,095.80 × 12,357,845.20
  4. Step 4: Simplify right side
    13,021,397.20x = 241,374,616,327,970.16
  5. Step 5: Solve for x
    x = 241,374,616,327,970.16/13,021,397.20
  6. Step 6: Final answer
    x = 18,536,767.80

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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.