Home / 9,990,848.96-13,787,412-5,407,169.12

Finding the Fourth Proportional to 9,990,848.96, 13,787,412 and 5,407,169.12

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Solution

The fourth proportional to 9,990,848.96, 13,787,412 and 5,407,169.12 is: 7,461,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990,848.96 : 13,787,412 = 5,407,169.12 : x
  2. Step 2: Convert to fraction form
    9,990,848.96/13,787,412 = 5,407,169.12/x
  3. Step 3: Cross multiply
    9,990,848.96x = 13,787,412 × 5,407,169.12
  4. Step 4: Simplify right side
    9,990,848.96x = 74,550,868,411,117.44
  5. Step 5: Solve for x
    x = 74,550,868,411,117.44/9,990,848.96
  6. Step 6: Final answer
    x = 7,461,915.27

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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.