Home / 7,148,500.42-9,865,030.47-3,885,314.20

Finding the Fourth Proportional to 7,148,500.42, 9,865,030.47 and 3,885,314.20

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Solution

The fourth proportional to 7,148,500.42, 9,865,030.47 and 3,885,314.20 is: 5,361,787.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148,500.42 : 9,865,030.47 = 3,885,314.20 : x
  2. Step 2: Convert to fraction form
    7,148,500.42/9,865,030.47 = 3,885,314.20/x
  3. Step 3: Cross multiply
    7,148,500.42x = 9,865,030.47 × 3,885,314.20
  4. Step 4: Simplify right side
    7,148,500.42x = 38,328,742,968,523.68
  5. Step 5: Solve for x
    x = 38,328,742,968,523.68/7,148,500.42
  6. Step 6: Final answer
    x = 5,361,787.89

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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.