Home / 9,120,308.89-12,586,019.59-4,990,367.15

Finding the Fourth Proportional to 9,120,308.89, 12,586,019.59 and 4,990,367.15

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Solution

The fourth proportional to 9,120,308.89, 12,586,019.59 and 4,990,367.15 is: 6,886,703.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120,308.89 : 12,586,019.59 = 4,990,367.15 : x
  2. Step 2: Convert to fraction form
    9,120,308.89/12,586,019.59 = 4,990,367.15/x
  3. Step 3: Cross multiply
    9,120,308.89x = 12,586,019.59 × 4,990,367.15
  4. Step 4: Simplify right side
    9,120,308.89x = 62,808,858,711,192.47
  5. Step 5: Solve for x
    x = 62,808,858,711,192.47/9,120,308.89
  6. Step 6: Final answer
    x = 6,886,703.01

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1.5x scale

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.