Home / 20,549,312.87-30,781,075.73-12,325,875.43

Finding the Fourth Proportional to 20,549,312.87, 30,781,075.73 and 12,325,875.43

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Solution

The fourth proportional to 20,549,312.87, 30,781,075.73 and 12,325,875.43 is: 18,463,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549,312.87 : 30,781,075.73 = 12,325,875.43 : x
  2. Step 2: Convert to fraction form
    20,549,312.87/30,781,075.73 = 12,325,875.43/x
  3. Step 3: Cross multiply
    20,549,312.87x = 30,781,075.73 × 12,325,875.43
  4. Step 4: Simplify right side
    20,549,312.87x = 379,403,704,951,254.62
  5. Step 5: Solve for x
    x = 379,403,704,951,254.62/20,549,312.87
  6. Step 6: Final answer
    x = 18,463,084.74

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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.