Home / 10,129,673.40-15,185,995.14-8,205,813.93

Finding the Fourth Proportional to 10,129,673.40, 15,185,995.14 and 8,205,813.93

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Solution

The fourth proportional to 10,129,673.40, 15,185,995.14 and 8,205,813.93 is: 12,301,823.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129,673.40 : 15,185,995.14 = 8,205,813.93 : x
  2. Step 2: Convert to fraction form
    10,129,673.40/15,185,995.14 = 8,205,813.93/x
  3. Step 3: Cross multiply
    10,129,673.40x = 15,185,995.14 × 8,205,813.93
  4. Step 4: Simplify right side
    10,129,673.40x = 124,613,450,460,724.30
  5. Step 5: Solve for x
    x = 124,613,450,460,724.30/10,129,673.40
  6. Step 6: Final answer
    x = 12,301,823.12

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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.