Home / 280,084,283.68-386,516,846.46-154,636,722.40

Finding the Fourth Proportional to 280,084,283.68, 386,516,846.46 and 154,636,722.40

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Solution

The fourth proportional to 280,084,283.68, 386,516,846.46 and 154,636,722.40 is: 213,398,972.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,084,283.68 : 386,516,846.46 = 154,636,722.40 : x
  2. Step 2: Convert to fraction form
    280,084,283.68/386,516,846.46 = 154,636,722.40/x
  3. Step 3: Cross multiply
    280,084,283.68x = 386,516,846.46 × 154,636,722.40
  4. Step 4: Simplify right side
    280,084,283.68x = 59,769,698,288,958,440
  5. Step 5: Solve for x
    x = 59,769,698,288,958,440/280,084,283.68
  6. Step 6: Final answer
    x = 213,398,972.28

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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.