Home / 13,361,116.80-18,438,555.51-7,249,545.30

Finding the Fourth Proportional to 13,361,116.80, 18,438,555.51 and 7,249,545.30

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Solution

The fourth proportional to 13,361,116.80, 18,438,555.51 and 7,249,545.30 is: 10,004,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361,116.80 : 18,438,555.51 = 7,249,545.30 : x
  2. Step 2: Convert to fraction form
    13,361,116.80/18,438,555.51 = 7,249,545.30/x
  3. Step 3: Cross multiply
    13,361,116.80x = 18,438,555.51 × 7,249,545.30
  4. Step 4: Simplify right side
    13,361,116.80x = 133,671,143,436,309.61
  5. Step 5: Solve for x
    x = 133,671,143,436,309.61/13,361,116.80
  6. Step 6: Final answer
    x = 10,004,488.80

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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.