Home / 144,581,381.88-216,330,007.86-86,075,060.28

Finding the Fourth Proportional to 144,581,381.88, 216,330,007.86 and 86,075,060.28

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Solution

The fourth proportional to 144,581,381.88, 216,330,007.86 and 86,075,060.28 is: 128,789,877.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,581,381.88 : 216,330,007.86 = 86,075,060.28 : x
  2. Step 2: Convert to fraction form
    144,581,381.88/216,330,007.86 = 86,075,060.28/x
  3. Step 3: Cross multiply
    144,581,381.88x = 216,330,007.86 × 86,075,060.28
  4. Step 4: Simplify right side
    144,581,381.88x = 18,620,618,466,922,376
  5. Step 5: Solve for x
    x = 18,620,618,466,922,376/144,581,381.88
  6. Step 6: Final answer
    x = 128,789,877.54

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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.