Home / 208,614,000.30-312,921,000.45-55,283,721.90

Finding the Fourth Proportional to 208,614,000.30, 312,921,000.45 and 55,283,721.90

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Solution

The fourth proportional to 208,614,000.30, 312,921,000.45 and 55,283,721.90 is: 82,925,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,614,000.30 : 312,921,000.45 = 55,283,721.90 : x
  2. Step 2: Convert to fraction form
    208,614,000.30/312,921,000.45 = 55,283,721.90/x
  3. Step 3: Cross multiply
    208,614,000.30x = 312,921,000.45 × 55,283,721.90
  4. Step 4: Simplify right side
    208,614,000.30x = 17,299,437,565,547,574
  5. Step 5: Solve for x
    x = 17,299,437,565,547,574/208,614,000.30
  6. Step 6: Final answer
    x = 82,925,582.85

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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.