Home / 51,468,643.72-77,217,907.68-20,747,368.72

Finding the Fourth Proportional to 51,468,643.72, 77,217,907.68 and 20,747,368.72

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Solution

The fourth proportional to 51,468,643.72, 77,217,907.68 and 20,747,368.72 is: 31,127,076.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,468,643.72 : 77,217,907.68 = 20,747,368.72 : x
  2. Step 2: Convert to fraction form
    51,468,643.72/77,217,907.68 = 20,747,368.72/x
  3. Step 3: Cross multiply
    51,468,643.72x = 77,217,907.68 × 20,747,368.72
  4. Step 4: Simplify right side
    51,468,643.72x = 1,602,068,402,423,879.75
  5. Step 5: Solve for x
    x = 1,602,068,402,423,879.75/51,468,643.72
  6. Step 6: Final answer
    x = 31,127,076.34

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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.