Home / 28,116,514.80-42,174,772.20-9,920,565.45

Finding the Fourth Proportional to 28,116,514.80, 42,174,772.20 and 9,920,565.45

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Solution

The fourth proportional to 28,116,514.80, 42,174,772.20 and 9,920,565.45 is: 14,880,848.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116,514.80 : 42,174,772.20 = 9,920,565.45 : x
  2. Step 2: Convert to fraction form
    28,116,514.80/42,174,772.20 = 9,920,565.45/x
  3. Step 3: Cross multiply
    28,116,514.80x = 42,174,772.20 × 9,920,565.45
  4. Step 4: Simplify right side
    28,116,514.80x = 418,397,587,948,940.50
  5. Step 5: Solve for x
    x = 418,397,587,948,940.50/28,116,514.80
  6. Step 6: Final answer
    x = 14,880,848.18

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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.