Home / 291,329,620.65-436,868,459.78-145,706,913.45

Finding the Fourth Proportional to 291,329,620.65, 436,868,459.78 and 145,706,913.45

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Solution

The fourth proportional to 291,329,620.65, 436,868,459.78 and 145,706,913.45 is: 218,497,366.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,329,620.65 : 436,868,459.78 = 145,706,913.45 : x
  2. Step 2: Convert to fraction form
    291,329,620.65/436,868,459.78 = 145,706,913.45/x
  3. Step 3: Cross multiply
    291,329,620.65x = 436,868,459.78 × 145,706,913.45
  4. Step 4: Simplify right side
    291,329,620.65x = 63,654,754,857,470,720
  5. Step 5: Solve for x
    x = 63,654,754,857,470,720/291,329,620.65
  6. Step 6: Final answer
    x = 218,497,366.37

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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.