Home / 28,617,187.80-42,871,708.98-16,910,639.40

Finding the Fourth Proportional to 28,617,187.80, 42,871,708.98 and 16,910,639.40

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Solution

The fourth proportional to 28,617,187.80, 42,871,708.98 and 16,910,639.40 is: 25,334,006.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,617,187.80 : 42,871,708.98 = 16,910,639.40 : x
  2. Step 2: Convert to fraction form
    28,617,187.80/42,871,708.98 = 16,910,639.40/x
  3. Step 3: Cross multiply
    28,617,187.80x = 42,871,708.98 × 16,910,639.40
  4. Step 4: Simplify right side
    28,617,187.80x = 724,988,011,022,521.75
  5. Step 5: Solve for x
    x = 724,988,011,022,521.75/28,617,187.80
  6. Step 6: Final answer
    x = 25,334,006.13

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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.