Home / 13,213,178.89-19,813,360.59-7,750,058.88

Finding the Fourth Proportional to 13,213,178.89, 19,813,360.59 and 7,750,058.88

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Solution

The fourth proportional to 13,213,178.89, 19,813,360.59 and 7,750,058.88 is: 11,621,329.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213,178.89 : 19,813,360.59 = 7,750,058.88 : x
  2. Step 2: Convert to fraction form
    13,213,178.89/19,813,360.59 = 7,750,058.88/x
  3. Step 3: Cross multiply
    13,213,178.89x = 19,813,360.59 × 7,750,058.88
  4. Step 4: Simplify right side
    13,213,178.89x = 153,554,711,118,159.94
  5. Step 5: Solve for x
    x = 153,554,711,118,159.94/13,213,178.89
  6. Step 6: Final answer
    x = 11,621,329.92

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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.