Home / 15,409,283.81-21,254,572.53-9,909,611.82

Finding the Fourth Proportional to 15,409,283.81, 21,254,572.53 and 9,909,611.82

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Solution

The fourth proportional to 15,409,283.81, 21,254,572.53 and 9,909,611.82 is: 13,668,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409,283.81 : 21,254,572.53 = 9,909,611.82 : x
  2. Step 2: Convert to fraction form
    15,409,283.81/21,254,572.53 = 9,909,611.82/x
  3. Step 3: Cross multiply
    15,409,283.81x = 21,254,572.53 × 9,909,611.82
  4. Step 4: Simplify right side
    15,409,283.81x = 210,624,563,172,335.31
  5. Step 5: Solve for x
    x = 210,624,563,172,335.31/15,409,283.81
  6. Step 6: Final answer
    x = 13,668,679.60

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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.