Home / 20,723,817,378.91-31,087,506,156.23-7,276,945,468.45

Finding the Fourth Proportional to 20,723,817,378.91, 31,087,506,156.23 and 7,276,945,468.45

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Solution

The fourth proportional to 20,723,817,378.91, 31,087,506,156.23 and 7,276,945,468.45 is: 10,916,043,261.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,817,378.91 : 31,087,506,156.23 = 7,276,945,468.45 : x
  2. Step 2: Convert to fraction form
    20,723,817,378.91/31,087,506,156.23 = 7,276,945,468.45/x
  3. Step 3: Cross multiply
    20,723,817,378.91x = 31,087,506,156.23 × 7,276,945,468.45
  4. Step 4: Simplify right side
    20,723,817,378.91x = 226,222,087,049,014,181,888
  5. Step 5: Solve for x
    x = 226,222,087,049,014,181,888/20,723,817,378.91
  6. Step 6: Final answer
    x = 10,916,043,261.37

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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.