Home / 213,192,030.30-319,788,045.45-209,790,807.90

Finding the Fourth Proportional to 213,192,030.30, 319,788,045.45 and 209,790,807.90

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Solution

The fourth proportional to 213,192,030.30, 319,788,045.45 and 209,790,807.90 is: 314,686,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,192,030.30 : 319,788,045.45 = 209,790,807.90 : x
  2. Step 2: Convert to fraction form
    213,192,030.30/319,788,045.45 = 209,790,807.90/x
  3. Step 3: Cross multiply
    213,192,030.30x = 319,788,045.45 × 209,790,807.90
  4. Step 4: Simplify right side
    213,192,030.30x = 67,088,592,411,717,416
  5. Step 5: Solve for x
    x = 67,088,592,411,717,416/213,192,030.30
  6. Step 6: Final answer
    x = 314,686,211.85

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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.