Home / 213,192,030.55-319,788,045.83-209,790,808.15

Finding the Fourth Proportional to 213,192,030.55, 319,788,045.83 and 209,790,808.15

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Solution

The fourth proportional to 213,192,030.55, 319,788,045.83 and 209,790,808.15 is: 314,686,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,192,030.55 : 319,788,045.83 = 209,790,808.15 : x
  2. Step 2: Convert to fraction form
    213,192,030.55/319,788,045.83 = 209,790,808.15/x
  3. Step 3: Cross multiply
    213,192,030.55x = 319,788,045.83 × 209,790,808.15
  4. Step 4: Simplify right side
    213,192,030.55x = 67,088,592,570,335,984
  5. Step 5: Solve for x
    x = 67,088,592,570,335,984/213,192,030.55
  6. Step 6: Final answer
    x = 314,686,212.23

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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.