Home / 698,023,148.64-963,242,959.74-380,476,411.76

Finding the Fourth Proportional to 698,023,148.64, 963,242,959.74 and 380,476,411.76

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Solution

The fourth proportional to 698,023,148.64, 963,242,959.74 and 380,476,411.76 is: 525,041,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,023,148.64 : 963,242,959.74 = 380,476,411.76 : x
  2. Step 2: Convert to fraction form
    698,023,148.64/963,242,959.74 = 380,476,411.76/x
  3. Step 3: Cross multiply
    698,023,148.64x = 963,242,959.74 × 380,476,411.76
  4. Step 4: Simplify right side
    698,023,148.64x = 366,491,224,970,141,120
  5. Step 5: Solve for x
    x = 366,491,224,970,141,120/698,023,148.64
  6. Step 6: Final answer
    x = 525,041,648.95

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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.