Home / 72,326,002.21-99,810,790.79-39,286,803.06

Finding the Fourth Proportional to 72,326,002.21, 99,810,790.79 and 39,286,803.06

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Solution

The fourth proportional to 72,326,002.21, 99,810,790.79 and 39,286,803.06 is: 54,216,281.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,326,002.21 : 99,810,790.79 = 39,286,803.06 : x
  2. Step 2: Convert to fraction form
    72,326,002.21/99,810,790.79 = 39,286,803.06/x
  3. Step 3: Cross multiply
    72,326,002.21x = 99,810,790.79 × 39,286,803.06
  4. Step 4: Simplify right side
    72,326,002.21x = 3,921,246,880,833,158
  5. Step 5: Solve for x
    x = 3,921,246,880,833,158/72,326,002.21
  6. Step 6: Final answer
    x = 54,216,281.30

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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.