Home / 142,716,712.10-214,075,068.15-99,669,991.10

Finding the Fourth Proportional to 142,716,712.10, 214,075,068.15 and 99,669,991.10

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Solution

The fourth proportional to 142,716,712.10, 214,075,068.15 and 99,669,991.10 is: 149,504,986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,716,712.10 : 214,075,068.15 = 99,669,991.10 : x
  2. Step 2: Convert to fraction form
    142,716,712.10/214,075,068.15 = 99,669,991.10/x
  3. Step 3: Cross multiply
    142,716,712.10x = 214,075,068.15 × 99,669,991.10
  4. Step 4: Simplify right side
    142,716,712.10x = 21,336,860,137,242,392
  5. Step 5: Solve for x
    x = 21,336,860,137,242,392/142,716,712.10
  6. Step 6: Final answer
    x = 149,504,986.65

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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.