Home / 21,069,875.70-31,551,669.45-16,818,347.70

Finding the Fourth Proportional to 21,069,875.70, 31,551,669.45 and 16,818,347.70

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Solution

The fourth proportional to 21,069,875.70, 31,551,669.45 and 16,818,347.70 is: 25,185,100.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,875.70 : 31,551,669.45 = 16,818,347.70 : x
  2. Step 2: Convert to fraction form
    21,069,875.70/31,551,669.45 = 16,818,347.70/x
  3. Step 3: Cross multiply
    21,069,875.70x = 31,551,669.45 × 16,818,347.70
  4. Step 4: Simplify right side
    21,069,875.70x = 530,646,947,325,567.75
  5. Step 5: Solve for x
    x = 530,646,947,325,567.75/21,069,875.70
  6. Step 6: Final answer
    x = 25,185,100.99

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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.