Home / 699,407,828.04-965,267,440.65-398,066,410.40

Finding the Fourth Proportional to 699,407,828.04, 965,267,440.65 and 398,066,410.40

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Solution

The fourth proportional to 699,407,828.04, 965,267,440.65 and 398,066,410.40 is: 549,379,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,407,828.04 : 965,267,440.65 = 398,066,410.40 : x
  2. Step 2: Convert to fraction form
    699,407,828.04/965,267,440.65 = 398,066,410.40/x
  3. Step 3: Cross multiply
    699,407,828.04x = 965,267,440.65 × 398,066,410.40
  4. Step 4: Simplify right side
    699,407,828.04x = 384,240,545,175,540,480
  5. Step 5: Solve for x
    x = 384,240,545,175,540,480/699,407,828.04
  6. Step 6: Final answer
    x = 549,379,817.86

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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.