Home / 385,174,074.57-531,541,253.19-208,962,069.93

Finding the Fourth Proportional to 385,174,074.57, 531,541,253.19 and 208,962,069.93

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Solution

The fourth proportional to 385,174,074.57, 531,541,253.19 and 208,962,069.93 is: 288,368,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,174,074.57 : 531,541,253.19 = 208,962,069.93 : x
  2. Step 2: Convert to fraction form
    385,174,074.57/531,541,253.19 = 208,962,069.93/x
  3. Step 3: Cross multiply
    385,174,074.57x = 531,541,253.19 × 208,962,069.93
  4. Step 4: Simplify right side
    385,174,074.57x = 111,071,960,519,768,624
  5. Step 5: Solve for x
    x = 111,071,960,519,768,624/385,174,074.57
  6. Step 6: Final answer
    x = 288,368,215.45

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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.