Home / 72,215,743.95-99,631,573.29-47,449,269.81

Finding the Fourth Proportional to 72,215,743.95, 99,631,573.29 and 47,449,269.81

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Solution

The fourth proportional to 72,215,743.95, 99,631,573.29 and 47,449,269.81 is: 65,462,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,215,743.95 : 99,631,573.29 = 47,449,269.81 : x
  2. Step 2: Convert to fraction form
    72,215,743.95/99,631,573.29 = 47,449,269.81/x
  3. Step 3: Cross multiply
    72,215,743.95x = 99,631,573.29 × 47,449,269.81
  4. Step 4: Simplify right side
    72,215,743.95x = 4,727,445,402,632,000
  5. Step 5: Solve for x
    x = 4,727,445,402,632,000/72,215,743.95
  6. Step 6: Final answer
    x = 65,462,808.30

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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.