Home / 12,938,815.80-19,374,009.30-10,368,070.20

Finding the Fourth Proportional to 12,938,815.80, 19,374,009.30 and 10,368,070.20

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Solution

The fourth proportional to 12,938,815.80, 19,374,009.30 and 10,368,070.20 is: 15,524,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,815.80 : 19,374,009.30 = 10,368,070.20 : x
  2. Step 2: Convert to fraction form
    12,938,815.80/19,374,009.30 = 10,368,070.20/x
  3. Step 3: Cross multiply
    12,938,815.80x = 19,374,009.30 × 10,368,070.20
  4. Step 4: Simplify right side
    12,938,815.80x = 200,871,088,477,852.84
  5. Step 5: Solve for x
    x = 200,871,088,477,852.84/12,938,815.80
  6. Step 6: Final answer
    x = 15,524,688.78

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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.