Home / 7,128,032.40-10,684,175.40-3,935,449.80

Finding the Fourth Proportional to 7,128,032.40, 10,684,175.40 and 3,935,449.80

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Solution

The fourth proportional to 7,128,032.40, 10,684,175.40 and 3,935,449.80 is: 5,898,827.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,032.40 : 10,684,175.40 = 3,935,449.80 : x
  2. Step 2: Convert to fraction form
    7,128,032.40/10,684,175.40 = 3,935,449.80/x
  3. Step 3: Cross multiply
    7,128,032.40x = 10,684,175.40 × 3,935,449.80
  4. Step 4: Simplify right side
    7,128,032.40x = 42,047,035,941,094.92
  5. Step 5: Solve for x
    x = 42,047,035,941,094.92/7,128,032.40
  6. Step 6: Final answer
    x = 5,898,827.84

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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.