Home / 9,120,419.80-12,585,985.14-4,990,434.34

Finding the Fourth Proportional to 9,120,419.80, 12,585,985.14 and 4,990,434.34

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Solution

The fourth proportional to 9,120,419.80, 12,585,985.14 and 4,990,434.34 is: 6,886,693.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120,419.80 : 12,585,985.14 = 4,990,434.34 : x
  2. Step 2: Convert to fraction form
    9,120,419.80/12,585,985.14 = 4,990,434.34/x
  3. Step 3: Cross multiply
    9,120,419.80x = 12,585,985.14 × 4,990,434.34
  4. Step 4: Simplify right side
    9,120,419.80x = 62,809,532,445,385.71
  5. Step 5: Solve for x
    x = 62,809,532,445,385.71/9,120,419.80
  6. Step 6: Final answer
    x = 6,886,693.14

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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.