Home / 30,205,058.40-45,307,587.60-18,725,932.80

Finding the Fourth Proportional to 30,205,058.40, 45,307,587.60 and 18,725,932.80

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Solution

The fourth proportional to 30,205,058.40, 45,307,587.60 and 18,725,932.80 is: 28,088,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,205,058.40 : 45,307,587.60 = 18,725,932.80 : x
  2. Step 2: Convert to fraction form
    30,205,058.40/45,307,587.60 = 18,725,932.80/x
  3. Step 3: Cross multiply
    30,205,058.40x = 45,307,587.60 × 18,725,932.80
  4. Step 4: Simplify right side
    30,205,058.40x = 848,426,840,727,713.38
  5. Step 5: Solve for x
    x = 848,426,840,727,713.38/30,205,058.40
  6. Step 6: Final answer
    x = 28,088,899.20

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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.