Home / 823,807,348.80-1,235,711,023.20-435,480,129.60

Finding the Fourth Proportional to 823,807,348.80, 1,235,711,023.20 and 435,480,129.60

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Solution

The fourth proportional to 823,807,348.80, 1,235,711,023.20 and 435,480,129.60 is: 653,220,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,807,348.80 : 1,235,711,023.20 = 435,480,129.60 : x
  2. Step 2: Convert to fraction form
    823,807,348.80/1,235,711,023.20 = 435,480,129.60/x
  3. Step 3: Cross multiply
    823,807,348.80x = 1,235,711,023.20 × 435,480,129.60
  4. Step 4: Simplify right side
    823,807,348.80x = 538,127,596,531,284,672
  5. Step 5: Solve for x
    x = 538,127,596,531,284,672/823,807,348.80
  6. Step 6: Final answer
    x = 653,220,194.40

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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.