Home / 390,734,708.24-539,229,061.17-214,530,130.28

Finding the Fourth Proportional to 390,734,708.24, 539,229,061.17 and 214,530,130.28

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Solution

The fourth proportional to 390,734,708.24, 539,229,061.17 and 214,530,130.28 is: 296,059,905.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,734,708.24 : 539,229,061.17 = 214,530,130.28 : x
  2. Step 2: Convert to fraction form
    390,734,708.24/539,229,061.17 = 214,530,130.28/x
  3. Step 3: Cross multiply
    390,734,708.24x = 539,229,061.17 × 214,530,130.28
  4. Step 4: Simplify right side
    390,734,708.24x = 115,680,880,743,562,176
  5. Step 5: Solve for x
    x = 115,680,880,743,562,176/390,734,708.24
  6. Step 6: Final answer
    x = 296,059,905.36

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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.