Home / 13,013,356.77-19,403,692.40-12,655,825.17

Finding the Fourth Proportional to 13,013,356.77, 19,403,692.40 and 12,655,825.17

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Solution

The fourth proportional to 13,013,356.77, 19,403,692.40 and 12,655,825.17 is: 18,870,591.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013,356.77 : 19,403,692.40 = 12,655,825.17 : x
  2. Step 2: Convert to fraction form
    13,013,356.77/19,403,692.40 = 12,655,825.17/x
  3. Step 3: Cross multiply
    13,013,356.77x = 19,403,692.40 × 12,655,825.17
  4. Step 4: Simplify right side
    13,013,356.77x = 245,569,738,666,857.69
  5. Step 5: Solve for x
    x = 245,569,738,666,857.69/13,013,356.77
  6. Step 6: Final answer
    x = 18,870,591.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.