Home / 12,921,973.48-19,371,228.48-6,447,029.20

Finding the Fourth Proportional to 12,921,973.48, 19,371,228.48 and 6,447,029.20

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Solution

The fourth proportional to 12,921,973.48, 19,371,228.48 and 6,447,029.20 is: 9,664,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,973.48 : 19,371,228.48 = 6,447,029.20 : x
  2. Step 2: Convert to fraction form
    12,921,973.48/19,371,228.48 = 6,447,029.20/x
  3. Step 3: Cross multiply
    12,921,973.48x = 19,371,228.48 × 6,447,029.20
  4. Step 4: Simplify right side
    12,921,973.48x = 124,886,875,650,431.62
  5. Step 5: Solve for x
    x = 124,886,875,650,431.62/12,921,973.48
  6. Step 6: Final answer
    x = 9,664,690.60

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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.