Home / 228,553,394.37-315,393,127.98-129,434,851.05

Finding the Fourth Proportional to 228,553,394.37, 315,393,127.98 and 129,434,851.05

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Solution

The fourth proportional to 228,553,394.37, 315,393,127.98 and 129,434,851.05 is: 178,614,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,553,394.37 : 315,393,127.98 = 129,434,851.05 : x
  2. Step 2: Convert to fraction form
    228,553,394.37/315,393,127.98 = 129,434,851.05/x
  3. Step 3: Cross multiply
    228,553,394.37x = 315,393,127.98 × 129,434,851.05
  4. Step 4: Simplify right side
    228,553,394.37x = 40,822,862,540,060,752
  5. Step 5: Solve for x
    x = 40,822,862,540,060,752/228,553,394.37
  6. Step 6: Final answer
    x = 178,614,116.20

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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.