Home / 15,442,685.40-21,302,051.78-9,631,378.07

Finding the Fourth Proportional to 15,442,685.40, 21,302,051.78 and 9,631,378.07

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Solution

The fourth proportional to 15,442,685.40, 21,302,051.78 and 9,631,378.07 is: 13,285,779.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442,685.40 : 21,302,051.78 = 9,631,378.07 : x
  2. Step 2: Convert to fraction form
    15,442,685.40/21,302,051.78 = 9,631,378.07/x
  3. Step 3: Cross multiply
    15,442,685.40x = 21,302,051.78 × 9,631,378.07
  4. Step 4: Simplify right side
    15,442,685.40x = 205,168,114,359,896.47
  5. Step 5: Solve for x
    x = 205,168,114,359,896.47/15,442,685.40
  6. Step 6: Final answer
    x = 13,285,779.58

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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.