Home / 155,563,381.41-214,686,075.69-85,947,267.63

Finding the Fourth Proportional to 155,563,381.41, 214,686,075.69 and 85,947,267.63

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Solution

The fourth proportional to 155,563,381.41, 214,686,075.69 and 85,947,267.63 is: 118,611,985.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,563,381.41 : 214,686,075.69 = 85,947,267.63 : x
  2. Step 2: Convert to fraction form
    155,563,381.41/214,686,075.69 = 85,947,267.63/x
  3. Step 3: Cross multiply
    155,563,381.41x = 214,686,075.69 × 85,947,267.63
  4. Step 4: Simplify right side
    155,563,381.41x = 18,451,681,603,762,864
  5. Step 5: Solve for x
    x = 18,451,681,603,762,864/155,563,381.41
  6. Step 6: Final answer
    x = 118,611,985.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.