Home / 7,926,421.80-11,889,632.70-5,186,548.20

Finding the Fourth Proportional to 7,926,421.80, 11,889,632.70 and 5,186,548.20

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Solution

The fourth proportional to 7,926,421.80, 11,889,632.70 and 5,186,548.20 is: 7,779,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926,421.80 : 11,889,632.70 = 5,186,548.20 : x
  2. Step 2: Convert to fraction form
    7,926,421.80/11,889,632.70 = 5,186,548.20/x
  3. Step 3: Cross multiply
    7,926,421.80x = 11,889,632.70 × 5,186,548.20
  4. Step 4: Simplify right side
    7,926,421.80x = 61,666,153,078,846.14
  5. Step 5: Solve for x
    x = 61,666,153,078,846.14/7,926,421.80
  6. Step 6: Final answer
    x = 7,779,822.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.