Home / 386,268,156.70-579,402,235.05-204,869,628.70

Finding the Fourth Proportional to 386,268,156.70, 579,402,235.05 and 204,869,628.70

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Solution

The fourth proportional to 386,268,156.70, 579,402,235.05 and 204,869,628.70 is: 307,304,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,268,156.70 : 579,402,235.05 = 204,869,628.70 : x
  2. Step 2: Convert to fraction form
    386,268,156.70/579,402,235.05 = 204,869,628.70/x
  3. Step 3: Cross multiply
    386,268,156.70x = 579,402,235.05 × 204,869,628.70
  4. Step 4: Simplify right side
    386,268,156.70x = 118,701,920,762,643,616
  5. Step 5: Solve for x
    x = 118,701,920,762,643,616/386,268,156.70
  6. Step 6: Final answer
    x = 307,304,443.05

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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.