Home / 21,710,455.62-29,960,428.86-11,920,899.83

Finding the Fourth Proportional to 21,710,455.62, 29,960,428.86 and 11,920,899.83

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Solution

The fourth proportional to 21,710,455.62, 29,960,428.86 and 11,920,899.83 is: 16,450,841.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,710,455.62 : 29,960,428.86 = 11,920,899.83 : x
  2. Step 2: Convert to fraction form
    21,710,455.62/29,960,428.86 = 11,920,899.83/x
  3. Step 3: Cross multiply
    21,710,455.62x = 29,960,428.86 × 11,920,899.83
  4. Step 4: Simplify right side
    21,710,455.62x = 357,155,271,271,899.19
  5. Step 5: Solve for x
    x = 357,155,271,271,899.19/21,710,455.62
  6. Step 6: Final answer
    x = 16,450,841.82

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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.