Home / 9,121,395.50-12,587,331.58-4,991,410.02

Finding the Fourth Proportional to 9,121,395.50, 12,587,331.58 and 4,991,410.02

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Solution

The fourth proportional to 9,121,395.50, 12,587,331.58 and 4,991,410.02 is: 6,888,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121,395.50 : 12,587,331.58 = 4,991,410.02 : x
  2. Step 2: Convert to fraction form
    9,121,395.50/12,587,331.58 = 4,991,410.02/x
  3. Step 3: Cross multiply
    9,121,395.50x = 12,587,331.58 × 4,991,410.02
  4. Step 4: Simplify right side
    9,121,395.50x = 62,828,532,960,995.91
  5. Step 5: Solve for x
    x = 62,828,532,960,995.91/9,121,395.50
  6. Step 6: Final answer
    x = 6,888,039.55

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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.