Home / 830,197,209.76-1,145,685,760.72-495,698,962.60

Finding the Fourth Proportional to 830,197,209.76, 1,145,685,760.72 and 495,698,962.60

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Solution

The fourth proportional to 830,197,209.76, 1,145,685,760.72 and 495,698,962.60 is: 684,072,695.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,197,209.76 : 1,145,685,760.72 = 495,698,962.60 : x
  2. Step 2: Convert to fraction form
    830,197,209.76/1,145,685,760.72 = 495,698,962.60/x
  3. Step 3: Cross multiply
    830,197,209.76x = 1,145,685,760.72 × 495,698,962.60
  4. Step 4: Simplify right side
    830,197,209.76x = 567,915,243,051,719,744
  5. Step 5: Solve for x
    x = 567,915,243,051,719,744/830,197,209.76
  6. Step 6: Final answer
    x = 684,072,695.47

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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.