Home / 631,152,010.80-946,728,016.20-478,097,002.80

Finding the Fourth Proportional to 631,152,010.80, 946,728,016.20 and 478,097,002.80

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Solution

The fourth proportional to 631,152,010.80, 946,728,016.20 and 478,097,002.80 is: 717,145,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,152,010.80 : 946,728,016.20 = 478,097,002.80 : x
  2. Step 2: Convert to fraction form
    631,152,010.80/946,728,016.20 = 478,097,002.80/x
  3. Step 3: Cross multiply
    631,152,010.80x = 946,728,016.20 × 478,097,002.80
  4. Step 4: Simplify right side
    631,152,010.80x = 452,627,827,012,009,856
  5. Step 5: Solve for x
    x = 452,627,827,012,009,856/631,152,010.80
  6. Step 6: Final answer
    x = 717,145,504.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.