Home / 105,015,075.31-144,917,005.72-57,971,139.07

Finding the Fourth Proportional to 105,015,075.31, 144,917,005.72 and 57,971,139.07

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Solution

The fourth proportional to 105,015,075.31, 144,917,005.72 and 57,971,139.07 is: 79,998,075.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,015,075.31 : 144,917,005.72 = 57,971,139.07 : x
  2. Step 2: Convert to fraction form
    105,015,075.31/144,917,005.72 = 57,971,139.07/x
  3. Step 3: Cross multiply
    105,015,075.31x = 144,917,005.72 × 57,971,139.07
  4. Step 4: Simplify right side
    105,015,075.31x = 8,401,003,891,912,250
  5. Step 5: Solve for x
    x = 8,401,003,891,912,250/105,015,075.31
  6. Step 6: Final answer
    x = 79,998,075.21

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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.